Credit Suisse First Boston Mortgage Securities Corp.

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Reporting Package Table of Contents

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Administrator:

Scott Kallback 312.904.5444
scott.kallback@abnamro.com

Analyst:

Julie Ji 714.259.6832
Julie.Ji@abnamro.com

Statement Date:

135 S. LaSalle Street, Suite 1625
Chicago, IL 60603
USA

Statements to Certificateholders
Cash Reconciliation Summary
Shortfall Summary Report
Bond Interest Reconciliation

Rating Information

SWAP Summary
Asset-Backed Facts ~ 15 Month Loan Status Summary

Delinquent Loan Detail
Asset-Backed Facts ~ 15 Month Loan Payoff/Loss Summary
Historical Collateral Prepayment

Page 2-5
Page 6-8
Page 9
Page 10-11

Page 12-13

Page 14
Page 15

Page 16-18
Page 19

Page 20

Mortgage Loan Characteristics

Loan Level Detail
Appraisal Reduction Detail
Specially Serviced (Part I) - Loan Detail

Specially Serviced (Part II) - Servicer Comments
Modified Loan Detail
Realized Loss Detail

Page 21-23

Page 24-39
Page 40
Page 41

Page 42
Page 43
Page 44

Page(s)

Information is available for this issue from the following sources

Issue Id:

Monthly Data File
Name:

CS2006C4

CS2006C4_200612_3.ZIP

Collateral Realized Loss
Historical REO Report
Material Breaches Detail

Page 45
Page 46

Page 47

Parties to the Transaction

800.246.5761

LaSalle Factor Line

LaSalle Web Site

www.etrustee.net

Master Servicer: KeyCorp Real Estate Capital Markets, Inc./NCB, FSB/KeyCorp Real Estate Capital Markets, Inc.

Rating Agency: Fitch Ratings/Moody's Investors Service, Inc./Standard & Poor's Ratings Services

Special Servicer: LNR Partners, Inc./National Consumer Cooperative Bank

Underwriter: Credit Suisse First Boston, New York

Closing Date:

28-Sep-2006

First Payment Date:

17-Oct-2006

Rated Final Payment Date:

16-Sep-2039

Determination Date:

11-Dec-2006

Trust Collection Period

11/14/2006 - 12/11/2006

Page 1 of 47

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:
Current Index:
Next Index:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

6.131457%

5.320000%
5.350000%

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Credit Suisse First Boston Mortgage Securities Corp.

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

114

Upper-Tier REMIC

Statement Date:

ABN AMRO Acct: 724103.1

980.664469253

10.531451571

0.000000000

970.133017682

3.898958539

Fixed

0.00

0.000000000

4.7710000000%

0.000000000

22545MAA5

A-1

68,884,000.00

725,448.51

0.00

66,826,642.79

268,575.86

67,552,091.30

1000.000000000

0.000000000

1000.000000000

4.467500000

Fixed

0.00

0.000000000

5.3610000000%

0.000000000

22545MAB3

A-2

92,000,000.00

0.00

92,000,000.00

411,010.00

92,000,000.00

1000.000000000

0.000000000

1000.000000000

4.532500000

Fixed

0.00

0.000000000

5.4390000000%

0.000000000

22545MAC1

A-AB

156,000,000.00

0.00

156,000,000.00

707,070.00

156,000,000.00

1000.000000000

0.000000000

1000.000000000

4.555833339

Fixed

0.00

0.000000000

5.4670000000%

0.000000000

22545MAD9

A-3

1,812,000,000.00

0.00

1,812,000,000.00

8,255,170.01

1,812,000,000.00

999.585801244

0.236651205

0.000000000

999.349150039

4.548115390

Fixed

0.00

0.000000000

5.4600000000%

0.000000000

22545MAE7

A-1-A

712,280,000.00

168,561.92

0.00

711,816,412.59

3,239,531.63

711,984,974.51

1000.000000000

0.000000000

1000.000000000

4.556666667

Fixed

0.00

0.000000000

5.4680000000%

0.000000000

22545MBC0

A-4FL-REG

150,000,000.00

0.00

150,000,000.00

683,500.00

150,000,000.00

1000.000000000

0.000000000

1000.000000000

4.590833333

Fixed

0.00

0.000000000

5.5090000000%

0.000000000

22545MAF4

A-M

427,309,000.00

0.00

427,309,000.00

1,961,704.40

427,309,000.00

1000.000000000

0.000000000

1000.000000000

4.615000000

0.00

0.000000000

5.5380000000%

0.000000000

22545MAG2

A-J

341,847,000.00

0.00

341,847,000.00

1,577,623.91

341,847,000.00

1000.000000000

0.000000000

1000.000000000

4.640000000

0.00

0.000000000

5.5680000000%

0.000000000

22545MAH0/U12668AA4/22545MBD8

26,707,000.00

0.00

26,707,000.00

123,920.48

26,707,000.00

1000.000000000

0.000000000

1000.000000000

4.601666693

0.00

0.000000000

5.5220000000%

0.000000000

22545MAJ6/U12668AB2/22545MBE6

64,097,000.00

0.00

64,097,000.00

294,953.03

64,097,000.00

1000.000000000

0.000000000

1000.000000000

4.680833400

0.00

0.000000000

5.6170000000%

0.000000000

22545MAK3/U12668AC0/22545MBF3

37,389,000.00

0.00

37,389,000.00

175,011.68

37,389,000.00

1000.000000000

0.000000000

1000.000000000

4.705833333

0.00

0.000000000

5.6470000000%

0.000000000

22545MAL1/U12668AD8/22545MBG1

21,366,000.00

0.00

21,366,000.00

100,544.84

21,366,000.00

1000.000000000

0.000000000

1000.000000000

4.722500000

0.00

0.000000000

5.6670000000%

0.000000000

22545MAM9/U12668AE6/22545MBH9

48,072,000.00

0.00

48,072,000.00

227,020.02

48,072,000.00

1000.000000000

0.000000000

1000.000000000

4.771666667

0.00

0.000000000

5.7260000000%

0.000000000

22545MAN7/U12668AF3/22545MBJ5

42,731,000.00

0.00

42,731,000.00

203,898.09

42,731,000.00

1000.000000000

0.000000000

1000.000000000

4.927500000

0.00

0.000000000

5.9130000000%

0.000000000

22545MAP2/U12668AG1/22545MBK2

48,072,000.00

0.00

48,072,000.00

236,874.78

48,072,000.00

1000.000000000

0.000000000

1000.000000000

5.010000000

0.00

0.000000000

6.0120000000%

0.000000000

22545MAQ0/U12668AH9/22545MBL0

48,072,000.00

0.00

48,072,000.00

240,840.72

48,072,000.00

1000.000000000

0.000000000

1000.000000000

5.081572897

0.00

0.000000000

6.0978874769%

0.000000000

22545MAR8/U12668AJ5/22545MBM8

53,414,000.00

0.00

53,414,000.00

271,427.13

53,414,000.00

Page 2 of 47

Notes: (1) N denotes notional balance not included in total (2) Accrued Interest Plus/Minus Interest Adjustment Minus Deferred Interest equals Interest Payment (3) Estimated. * Denotes Controlling Class

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:
Current Index:
Next Index:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

6.131457%

5.320000%
5.350000%

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Credit Suisse First Boston Mortgage Securities Corp.

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

114

Upper-Tier REMIC

Statement Date:

ABN AMRO Acct: 724103.1

1000.000000000

0.000000000

1000.000000000

4.290000000

0.00

0.000000000

5.1480000000%

0.000000000

22545MAS6/U12668AK2/22545MBN6

10,683,000.00

0.00

10,683,000.00

45,830.07

10,683,000.00

1000.000000000

0.000000000

1000.000000000

4.290000000

0.00

0.000000000

5.1480000000%

0.000000000

22545MAT4/U12668AL0/22545MBP1

16,024,000.00

0.00

16,024,000.00

68,742.96

16,024,000.00

1000.000000000

0.000000000

1000.000000000

4.290000000

0.00

0.000000000

5.1480000000%

0.000000000

22545MAU1/U12668AM8/22545MBQ9

16,024,000.00

0.00

16,024,000.00

68,742.96

16,024,000.00

1000.000000000

0.000000000

1000.000000000

4.290000000

0.00

0.000000000

5.1480000000%

0.000000000

22545MAV9/U12668AN6/22545MBR7

5,341,000.00

0.00

5,341,000.00

22,912.89

5,341,000.00

1000.000000000

0.000000000

1000.000000000

4.290000000

0.00

0.000000000

5.1480000000%

0.000000000

22545MAW7/U12668AP1/22545MBS5

10,683,000.00

0.00

10,683,000.00

45,830.07

10,683,000.00

1000.000000000

0.000000000

1000.000000000

4.290000000

0.00

0.000000000

5.1480000000%

0.000000000

22545MAX5/U12668AQ9/22545MBT3

10,683,000.00

0.00

10,683,000.00

45,830.07

10,683,000.00

1000.000000000

0.000000000

1000.000000000

4.276795398

0.00

)

(705.31

)

(0.013204602

5.1480000000%

0.000000000

22545MAY3/U12668AR7/22545MBU0

53,413,953.00

0.00

53,413,953.00

228,440.55

53,413,953.00

999.619260700

0.000000000

999.410042073

0.049072943

0.00

0.000000000

0.0589099603%

0.000000000

22545MAZ0/U12668AS5/22545MBV8

A-X

4,273,091,953.00

0.00

4,270,571,008.53

209,693.20

4,271,465,018.96

1000.000000000

0.000000000

1000.000000000

0.492769283

0.00

0.000000000

0.5913231399%

0.000000000

22545MBA4/U12668AT3/22545MBW6

A-SP

4,039,124,000.00

0.00

4,039,124,000.00

1,990,356.24

4,039,124,000.00

998.938560345

0.000000000

998.349222123

0.083244880

0.00

0.000000000

0.1000000000%

0.000000000

22545MBB2/U12668AU0/22545MBX4

A-Y

119,355,537.00

0.00

119,158,507.52

9,935.74

119,228,848.30

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS65769

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS75180

R-I

0.00

Total P&I Payment

0.00

)

(705.31

4,273,091,953.00

4,271,465,018.81

22,609,001.74

Total

4,270,571,008.38

894,010.43

0.00

21,714,991.31

Page 3 of 47

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:
Current Index:
Next Index:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

6.131457%

5.320000%
5.350000%

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Credit Suisse First Boston Mortgage Securities Corp.

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

114

Loan REMIC

Statement Date:

ABN AMRO Acct: 724103.1

1000.000000000

0.000000000

1000.000000000

4.121166667

0.00

0.000000000

4.9454000000%

0.000000000

LR-M

60,000,000.00

0.00

60,000,000.00

247,270.00

60,000,000.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS75172

0.00

Total P&I Payment

0.00

247,270.00

Total

0.00

247,270.00

Page 4 of 47

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:
Current Index:
Next Index:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

6.131457%

5.320000%
5.350000%

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Credit Suisse First Boston Mortgage Securities Corp.

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

114

Grantor Trust

Statement Date:

ABN AMRO Acct: 724103.1

1000.000000000

0.000000000

1000.000000000

4.277777778

5.5300000000%

0.00

0.000000000

5.5000000000%

0.000000000

22545MBC0

A-4FL

150,000,000.00

0.00

150,000,000.00

641,666.67

150,000,000.00

0.000000000

0.00

0.000000000

N/A

0.000000000

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS65777

0.00

Total P&I Payment

0.00

150,000,000.00

641,666.67

Total

150,000,000.00

0.00

641,666.67

Page 5 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Statement Date:

Cash Reconciliation Summary

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

20,150,073.35

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

21,810,917.65

Unscheduled Interest:
Prepayment Penalties

0.00

Yield Maintenance Penalties

0.00

Other Interest Proceeds

0.00

Total

0.00

Less Fees & Expenses Paid By/To Servicer

Less Fee Paid To Servicer
Less Fee Strips Paid by Servicer

Special Servicing Fees

Interest Due Serv on Advances
Non Recoverable Advances
Misc. Fees & Expenses

Total Unscheduled Fees & Expenses

Total Interest Due Trust

Less Fees & Expenses Paid By/To Trust
Trustee Fee
Fee Strips
Misc. Fees
Interest Reserve Withholding
Plus Interest Reserve Deposit
Total

Principal Summary

Scheduled Principal:
Current Scheduled Principal
Advanced Scheduled Principal
Scheduled Principal
Unscheduled Principal:
Curtailments
Prepayments in Full
Liquidation Proceeds
Repurchase Proceeds
Other Principal Proceeds
Total Unscheduled Principal
Remittance Principal

Remittance P&I Due Trust

Remittance P&I Due Certs

Pool Balance Summary

Beginning Pool
Scheduled Principal
Unscheduled Principal
Deferred Interest
Liquidations
Repurchases
Ending Pool

Balance

Count

Principal

Interest

Prior Outstanding

Plus Current Period

Less Recovered

Ending Outstanding

Servicing Fee Summary

Current Servicing Fees
Plus Fees Advanced for PPIS
Less Reduction for PPIS
Plus Delinquent Servicing Fees

Total Servicing Fees

PPIS Summary

Gross PPIS
Reduced by PPIE
Reduced by Shortfalls in Fees
Reduced by Other Amounts
PPIS Reducing Scheduled Interest
PPIS Reducing Servicing Fee

PPIS Due Certificate

0.00

0.00
0.00

)

(705.31

)

(705.31

21,717,127.08

)

(2,135.78

0.00
0.00
0.00

)

(2,135.78

774,116.91
119,893.53
894,010.44

)

(0.01

0.00
0.00
0.00
0.00

)

(0.01

894,010.43

22,611,137.51

4,271,465,018.96

360

894,010.44

)

(0.01

0.00
0.00

0.00

4,270,571,008.53

360

72,817.64

1,240,439.45

119,893.53

1,660,844.30

131,891.35

1,720,360.87

93,085.26

0.00
0.00

14,335.37

107,420.63

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(93,085.26

Less Other Interest Not Advanced

0.00

1,660,844.30

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

)

(1,180,922.88

)

(60,819.82

0.00

Cumulative Prepayment Consideration Received

Prepayment Premiums
Yield Maintenance
Other Interest

21,714,991.30

22,609,001.73

Prior Outstanding

Plus Current Period

Less Recovered

Less Non Recovered

Ending Outstanding

Non-P&I Servicing Advance Summary

Amount

0.00

0.00
0.00

Total Interest Due Certs

0.00
0.00
0.00

Page 6 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Statement Date:

Cash Reconciliation Summary Loan Group 1

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

16,728,129.02

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

18,196,693.66

Unscheduled Interest:
Prepayment Penalties

0.00

Yield Maintenance Penalties

0.00

Other Interest Proceeds

0.00

Total

0.00

Less Fees & Expenses Paid By/To Servicer

Less Fee Paid To Servicer
Less Fee Strips Paid by Servicer

Special Servicing Fees

Interest Due Serv on Advances
Non Recoverable Advances
Misc. Fees & Expenses

Total Unscheduled Fees & Expenses

Total Interest Due Trust

Less Fees & Expenses Paid By/To Trust
Trustee Fee
Fee Strips
Misc. Fees
Interest Reserve Withholding
Plus Interest Reserve Deposit
Total

Principal Summary

Remittance P&I Due Trust

Remittance P&I Due Certs

Pool Balance Summary

Beginning Pool
Scheduled Principal
Unscheduled Principal
Deferred Interest
Liquidations
Repurchases
Ending Pool

Balance

Count

Principal

Interest

Prior Outstanding

Plus Current Period

Less Recovered

Ending Outstanding

Servicing Fee Summary

Current Servicing Fees
Plus Fees Advanced for PPIS
Less Reduction for PPIS
Plus Delinquent Servicing Fees

Total Servicing Fees

PPIS Summary

Gross PPIS
Reduced by PPIE
Reduced by Shortfalls in Fees
Reduced by Other Amounts
PPIS Reducing Scheduled Interest
PPIS Reducing Servicing Fee

PPIS Due Certificate

0.00

0.00
0.00

)

(416.19

)

(416.19

18,120,375.25

)

(1,777.34

0.00
0.00
0.00

)

(1,777.34

634,418.83

90,317.93

724,736.76

)

(0.01

0.00
0.00
0.00
0.00

)

(0.01

724,736.75

18,845,112.00

3,554,582,408.28

267

724,736.76

)

(0.01

0.00
0.00

0.00

3,553,857,671.53

267

60,790.21

1,132,088.44

90,317.93

1,468,564.64

94,349.46

1,492,254.80

75,902.22

0.00
0.00

12,629.68

88,531.90

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(75,902.22

Less Other Interest Not Advanced

0.00

1,468,564.64

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

)

(1,108,398.28

)

(56,758.68

0.00

Cumulative Prepayment Consideration Received

Prepayment Premiums
Yield Maintenance
Other Interest

18,118,597.91

18,843,334.66

Prior Outstanding

Plus Current Period

Less Recovered

Less Non Recovered

Ending Outstanding

Non-P&I Servicing Advance Summary

Amount

0.00

0.00
0.00

Total Interest Due Certs

0.00
0.00
0.00

Page 7 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Statement Date:

Cash Reconciliation Summary Loan Group 2

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

3,113,955.67

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

3,306,235.33

Unscheduled Interest:
Prepayment Penalties

0.00

Yield Maintenance Penalties

0.00

Other Interest Proceeds

0.00

Total

0.00

Less Fees & Expenses Paid By/To Servicer

Less Fee Paid To Servicer
Less Fee Strips Paid by Servicer

Special Servicing Fees

Interest Due Serv on Advances
Non Recoverable Advances
Misc. Fees & Expenses

Total Unscheduled Fees & Expenses

Total Interest Due Trust

Less Fees & Expenses Paid By/To Trust
Trustee Fee
Fee Strips
Misc. Fees
Interest Reserve Withholding
Plus Interest Reserve Deposit
Total

Principal Summary

Remittance P&I Due Trust

Remittance P&I Due Certs

Pool Balance Summary

Beginning Pool
Scheduled Principal
Unscheduled Principal
Deferred Interest
Liquidations
Repurchases
Ending Pool

Balance

Count

Principal

Interest

Prior Outstanding

Plus Current Period

Less Recovered

Ending Outstanding

Servicing Fee Summary

Current Servicing Fees
Plus Fees Advanced for PPIS
Less Reduction for PPIS
Plus Delinquent Servicing Fees

Total Servicing Fees

PPIS Summary

Gross PPIS
Reduced by PPIE
Reduced by Shortfalls in Fees
Reduced by Other Amounts
PPIS Reducing Scheduled Interest
PPIS Reducing Servicing Fee

PPIS Due Certificate

0.00

0.00
0.00

)

(289.12

)

(289.12

3,292,822.50

)

(327.99

0.00
0.00
0.00

)

(327.99

104,789.26

29,575.60

134,364.86

0.00
0.00
0.00
0.00
0.00
0.00

134,364.86

3,427,187.36

655,992,605.97

134,364.86

0.00

0.00
0.00

0.00

655,858,241.11

12,027.43

108,351.01

29,575.60

192,279.66

37,541.89

228,106.07

13,123.71

0.00
0.00

1,705.69

14,829.40

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(13,123.71

Less Other Interest Not Advanced

0.00

192,279.66

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

)

(72,524.60

)

(4,061.14

0.00

Cumulative Prepayment Consideration Received

Prepayment Premiums
Yield Maintenance
Other Interest

3,292,494.51

3,426,859.37

Prior Outstanding

Plus Current Period

Less Recovered

Less Non Recovered

Ending Outstanding

Non-P&I Servicing Advance Summary

Amount

0.00

0.00
0.00

Total Interest Due Certs

0.00
0.00
0.00

Page 8 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Interest Adjustments Summary

Statement Date

0.00

Special Servicing Fees

Workout Fees

Liquidation Fees

Legal Fees

0.00

Misc. Fees & Expenses Paid by/to Servicer

Interest Paid to Servicer on Outstanding Advances

705.31

0.00

ASER Interest Advance Reduction

Interest Not Advanced (Current Period)

Recoup of Prior Advances by Servicer

0.00

Servicing Fees Paid Servicer on Loans Not Advanced

Misc. Fees & Expenses Paid by Trust

0.00

Shortfall Due to Rate Modification

Total Shortfall Allocated to the Bonds

Total Interest Adjustment to the Bonds

705.31

Shortfall Allocated to the Bonds:

Excess Allocated to the Bonds:

Other Interest Proceeds Due the Bonds

Yield Maintenance Penalties Due the Bonds

Prepayment Penalties Due the Bonds

Recovered ASER Interest Due the Bonds

Recovered Interest Due the Bonds

Less Total Shortfall Allocated to the Bonds

Total Excess Allocated to the Bonds

0.00

0.00

Total Excess Allocated to the Bonds

)

(705.31

)

(705.31

Aggregate Interest Adjustment Allocated to the Bonds

0.00

Prepayment Interest Excess Due the Bonds

0.00

ARD Excess Interest

0.00

Net Prepayment Int. Shortfalls Allocated to the Bonds

Other Interest Loss

Interest Income

0.00

Page 9 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Class

Accrued

Certificate

Interest

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Bond Interest Reconciliation Detail

Total

Interest

Deductions

Accrual

Total

Interest

Additions

Statement Date:

Method

Opening

Balance

Distributable

Certificate

Interest

Payment

Amount

Current

Period

Shortfall

Recovery

Remaining

Outstanding

Interest

Shorfalls

Credit

Support

Pass-Through

Rate

Days

Original

Current (1)

30/360

4.771000%

67,552,091.30

268,575.86

0.00

268,575.86

0.00

A-1

0.00

33.51%

33.53%

268,575.86

0.00

30/360

5.361000%

92,000,000.00

411,010.00

0.00

411,010.00

0.00

A-2

0.00

33.51%

33.53%

411,010.00

0.00

30/360

5.439000%

156,000,000.00

707,070.00

0.00

707,070.00

0.00

A-AB

0.00

33.51%

33.53%

707,070.00

0.00

30/360

5.467000%

1,812,000,000.00

8,255,170.01

0.00

8,255,170.01

0.00

A-3

0.00

33.51%

33.53%

8,255,170.01

0.00

30/360

5.460000%

711,984,974.51

3,239,531.63

0.00

3,239,531.63

0.00

A-1-A

0.00

33.51%

33.53%

3,239,531.63

0.00

30/360

5.509000%

427,309,000.00

1,961,704.40

0.00

1,961,704.40

0.00

A-M

0.00

23.51%

23.52%

1,961,704.40

0.00

30/360

5.538000%

341,847,000.00

1,577,623.91

0.00

1,577,623.91

0.00

A-J

0.00

15.51%

15.52%

1,577,623.91

0.00

30/360

5.568000%

26,707,000.00

123,920.48

0.00

123,920.48

0.00

14.89%

123,920.48

0.00

30/360

5.522000%

64,097,000.00

294,953.03

0.00

294,953.03

0.00

13.39%

294,953.03

0.00

30/360

5.617000%

37,389,000.00

175,011.68

0.00

175,011.68

0.00

12.51%

12.52%

175,011.68

0.00

30/360

5.647000%

21,366,000.00

100,544.84

0.00

100,544.84

0.00

12.01%

12.02%

100,544.84

0.00

30/360

5.667000%

48,072,000.00

227,020.02

0.00

227,020.02

0.00

10.89%

227,020.02

0.00

30/360

5.726000%

42,731,000.00

203,898.09

0.00

203,898.09

0.00

9.89%

203,898.09

0.00

30/360

5.913000%

48,072,000.00

236,874.78

0.00

236,874.78

0.00

8.76%

8.77%

236,874.78

0.00

30/360

6.012000%

48,072,000.00

240,840.72

0.00

240,840.72

0.00

7.64%

240,840.72

0.00

30/360

6.097887%

53,414,000.00

271,427.13

0.00

271,427.13

0.00

6.39%

271,427.13

0.00

30/360

5.148000%

10,683,000.00

45,830.07

0.00

45,830.07

0.00

6.14%

45,830.07

0.00

30/360

5.148000%

16,024,000.00

68,742.96

0.00

68,742.96

0.00

5.76%

68,742.96

0.00

30/360

5.148000%

16,024,000.00

68,742.96

0.00

68,742.96

0.00

5.39%

68,742.96

0.00

30/360

5.148000%

5,341,000.00

22,912.89

0.00

22,912.89

0.00

5.26%

22,912.89

0.00

30/360

5.148000%

10,683,000.00

45,830.07

0.00

45,830.07

0.00

5.01%

45,830.07

0.00

30/360

5.148000%

10,683,000.00

45,830.07

0.00

45,830.07

0.00

4.76%

45,830.07

0.00

30/360

5.148000%

53,413,953.00

229,145.86

0.00

228,440.55

-705.31

705.31

3.51%

228,440.55

0.00

30/360

0.058910%

4,271,465,018.96

209,693.20

0.00

209,693.20

0.00

A-X

0.00

209,693.20

0.00

30/360

0.591323%

4,039,124,000.00

1,990,356.24

0.00

1,990,356.24

0.00

A-SP

0.00

1,990,356.24

0.00

Page 10 of 47

(1) Determined as follows: (A) the ending balance of all the classes less (B) the sum of (i) the ending balance of the class and (ii) the ending balance of all classes which are not subordinate to the class divided by (A).

Credit Suisse First Boston Mortgage Securities Corp.

Class

Accrued

Certificate

Interest

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Bond Interest Reconciliation Detail

Total

Interest

Deductions

Accrual

Total

Interest

Additions

Statement Date:

Method

Opening

Balance

Distributable

Certificate

Interest

Payment

Amount

Current

Period

Shortfall

Recovery

Remaining

Outstanding

Interest

Shorfalls

Credit

Support

Pass-Through

Rate

Days

Original

Current (1)

30/360

0.100000%

119,228,848.30

9,935.74

0.00

9,935.74

0.00

A-Y

0.00

9,935.74

0.00

Act/360

5.500000%

150,000,000.00

641,666.67

0.00

641,666.67

0.00

A-4FL

0.00

641,666.67

0.00

21,673,863.29

0.00

21,673,157.98

-705.31

705.31

0.00

Page 11 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:

Prior Payment:

Next Payment:

Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Rating Information

Class

CUSIP

Fitch

Moody's

S&P

Fitch

Moody's

S&P

Original Ratings

Rating Change/Change Date(1)

Statement Date:

A-1

22545MAA5

AAA

Aaa

AAA

A-2

22545MAB3

AAA

Aaa

AAA

A-AB

22545MAC1

AAA

Aaa

AAA

A-3

22545MAD9

AAA

Aaa

AAA

A-1-A

22545MAE7

AAA

Aaa

AAA

A-X

22545MAZ0

AAA

Aaa

AAA

A-SP

22545MBA4

AAA

Aaa

AAA

A-Y

22545MBB2

AAA

Aaa

AAA

A-M

22545MAF4

AAA

Aaa

AAA

A-J

22545MAG2

AAA

Aaa

AAA

22545MAH0

AA+

Aa1

AA+

22545MAJ6

Aa2

22545MAK3

AA-

Aa3

AA-

22545MAL1

A+

22545MAM9

22545MAN7

A-

22545MAP2

BBB+

Baa1

BBB+

22545MAQ0

BBB

Baa2

BBB

22545MAR8

BBB-

Baa3

BBB-

22545MAS6

BB+

Ba1

BB+

22545MAT4

Ba2

22545MAU1

BB-

Ba3

BB-

Page 12 of 47

NR - Designates that the class was not rated by the rating agency.

(1) Changed ratings provided on this report are based on information provided by the applicable rating agency via electronic transmission. It shall be understood that this transmission will generally have been provided to LaSalle within 30 days of the
payment date listed on this statement. Because ratings may have changed during the 30 day window, or may not be being provided by the rating agency in an electronic format and therefore not being updated on this report, LaSalle recommends that
investors obtain current rating information directly from the rating agency.

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:

Prior Payment:

Next Payment:

Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Rating Information

Class

CUSIP

Fitch

Moody's

S&P

Fitch

Moody's

S&P

Original Ratings

Rating Change/Change Date(1)

Statement Date:

22545MAV9

B+

22545MAW7

22545MAX5

B-

22545MAY3

LR-M

A-4FL

22545MBC0

AAA

Aaa

AAA

9ABS65777

Page 13 of 47

NR - Designates that the class was not rated by the rating agency.

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Other Related Information

Statement Date:

Float Payer:

Fixed Payer:

SWAP Contract
SWAP Contract

Notional

Amount

Received

Amount

Paid

Yield Maintenance

Prepayment Premiums

Paid

Shortfall

Amount

SWAP Payments

Rate

Amount

150,000,000.00
150,000,000.00

5.46800

5.50000

683,500.00
641,666.67

0.00

41,833.33

0.00

Class A-4FL

0.00

Page 14 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Asset-Backed Facts ~ 15 Month Historical Loan Status Summary

Distribution

Date

Delinq 1 Month

Delinq 2 Months

Delinq 3+ Months

Foreclosure

REO

Modifications

Specially Serviced

Bankruptcy

# Balance

Delinquency Aging Categories

Special Event Categories (1)

Statement Date:

ABN AMRO Acct: 724103.1

0.28%

0.15%

0.28%

0.09%

0.00%

0.28%

0.09%

12/15/2006

6,565,914.55

3,882,398.92

0.00

3,882,398.92

0.00

0.00%

11/17/2006

0.00

0.00%

10/17/2006

0.00

(1) Note: Modification, Specially Serviced & Bankruptcy Totals are Included in the Appropriate Delinquency Aging Category

Page 15 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Delinquent Loan Detail

Disclosure

Control #

Paid

Thru
Date

Current P&I

Advance

Outstanding

P&I

Advances**

Out. Property

Protection

Advances

Loan Status

Code (1)

Special

Servicer

Transfer Date

Foreclosure

Date

Bankruptcy

Date

REO
Date

Statement Date:

1-Nov-06

159,404.17

0.00

11-Nov-06

163,200.00

0.00

1-Nov-06

94,041.67

0.00

11-Nov-06

87,275.57

0.00

11-Nov-06

75,726.67

0.00

1-Nov-06

69,623.13

0.00

1-Nov-06

71,127.10

0.00

11-Nov-06

53,045.00

0.00

11-Nov-06

40,885.00

0.00

11-Nov-06

41,010.42

0.00

1-Nov-06

38,506.67

0.00

11-Nov-06

35,676.66

0.00

101

1-Nov-06

36,072.81

0.00

102

11-Nov-06

32,953.83

0.00

103

11-Oct-06

43,796.50

87,589.20

0.00

104

11-Nov-06

33,163.75

0.00

106

1-Nov-06

30,625.00

0.00

109

1-Nov-06

33,551.09

0.00

124

1-Nov-06

33,040.23

0.00

125

1-Nov-06

32,549.50

0.00

126

1-Nov-06

26,421.90

0.00

143

1-Nov-06

22,513.33

0.00

145

11-Nov-06

22,887.87

0.00

148

1-Nov-06

25,471.10

0.00

155

1-Nov-06

19,993.33

0.00

158

1-Sep-06

27,723.92

55,445.61

0.00

5-Dec-06

164

11-Nov-06

24,242.60

0.00

166

Page 16 of 47

A. In Grace Period

1. Delinq. 1 month

2. Delinq. 2 months

3. Delinquent 3 + months

4. Performing Matured Balloon

** Outstanding P&I Advances include the current period P&I Advances and may include Servicer Advances.

7. Foreclosure

9. REO

B. Late Payment but < 1 month delinq.

5. Non Performing Matured Balloon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Delinquent Loan Detail

Disclosure

Control #

Paid

Thru
Date

Current P&I

Advance

Outstanding

P&I

Advances**

Out. Property

Protection

Advances

Loan Status

Code (1)

Special

Servicer

Transfer Date

Foreclosure

Date

Bankruptcy

Date

REO
Date

Statement Date:

11-Nov-06

25,689.83

0.00

172

11-Nov-06

17,605.83

0.00

177

1-Nov-06

22,355.69

0.00

179

11-Nov-06

22,952.25

0.00

187

11-Nov-06

20,635.38

0.00

191

1-Nov-06

20,861.47

0.00

192

1-Nov-06

21,814.09

0.00

194

11-Nov-06

15,330.58

0.00

195

1-Nov-06

19,051.02

0.00

202

1-Nov-06

17,720.06

0.00

212

1-Nov-06

17,209.78

0.00

225

1-Nov-06

6,479.49

0.00

227

1-Nov-06

5,881.39

0.00

228

1-Nov-06

4,685.18

0.00

229

11-Nov-06

15,695.61

0.00

231

11-Nov-06

15,655.01

0.00

237

1-Nov-06

13,997.99

0.00

247

1-Nov-06

13,586.13

0.00

252

11-Nov-06

13,918.39

0.00

256

11-Nov-06

13,726.14

0.00

258

1-Nov-06

12,743.47

0.00

266

1-Nov-06

9,971.02

0.00

297

1-Nov-06

9,824.36

0.00

302

11-Nov-06

8,778.32

0.00

304

11-Nov-06

8,492.48

0.00

312

1-Nov-06

8,509.50

0.00

321

1-Nov-06

8,119.88

0.00

322

Page 17 of 47

A. In Grace Period

1. Delinq. 1 month

2. Delinq. 2 months

3. Delinquent 3 + months

4. Performing Matured Balloon

** Outstanding P&I Advances include the current period P&I Advances and may include Servicer Advances.

7. Foreclosure

9. REO

B. Late Payment but < 1 month delinq.

5. Non Performing Matured Balloon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Delinquent Loan Detail

Disclosure

Control #

Paid

Thru
Date

Current P&I

Advance

Outstanding

P&I

Advances**

Out. Property

Protection

Advances

Loan Status

Code (1)

Special

Servicer

Transfer Date

Foreclosure

Date

Bankruptcy

Date

REO
Date

Statement Date:

11-Nov-06

7,803.18

0.00

323

11-Nov-06

7,115.49

0.00

329

1,780,737.83

1,852,252.22

Total

Page 18 of 47

A. In Grace Period

1. Delinq. 1 month

2. Delinq. 2 months

3. Delinquent 3 + months

4. Performing Matured Balloon

** Outstanding P&I Advances include the current period P&I Advances and may include Servicer Advances.

7. Foreclosure

9. REO

B. Late Payment but < 1 month delinq.

5. Non Performing Matured Balloon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Asset-Backed Facts ~ 15 Month Historical Payoff/Loss Summary

Distribution

Date

Ending Pool (1)

Payoffs (2)

Penalties

Appraisal Reduct. (2)

Liquidations (2)

Realized Losses (2)

Remaining Term

Curr Weighted Avg.

# Balance

# Amount

# Balance

# Amount

Life

Coupon Remit

Statement Date:

Amort

ABN AMRO Acct: 724103.1

Series 2006-C4

15-Dec-06

360

100.00%

4,270,571,009

99.94%

0.00%

114

347

6.13%

6.10%

17-Nov-06

360

100.00%

4,271,465,019

99.96%

0.00%

115

347

6.33%

6.30%

17-Oct-06

360

100.00%

4,272,215,874

99.98%

0.00%

116

347

6.13%

6.10%

(1) Percentage based on pool as of cutoff. (2) Percentage based on pool as of beginning of period.

Page 19 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Historical Collateral Level Prepayment Report

Disclosure

Control #

Payoff
Period

Initial

Balance

Type

Payoff

Amount

Penalty

Amount

Prepayment

Date

Maturity

Date

Property

Type

Geographic

Location

Statement Date:

Cumulative

Current

Page 20 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Mortgage Loan Characteristics

ABN AMRO Acct: 724103.1

Series 2006-C4

Commercial Mortgage Pass-Through Certificates

30-Nov-06

18-Jan-07

17-Nov-06

15-Dec-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Statement Date:

Distribution of Mortgage Interest Rates

Distribution of Principal Balances

Distribution of Remaining Term (Balloon)

Distribution of Remaining Term (Fully Amortizing)

Page 21 of 47

Current Scheduled

Balance

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

23,450,434

0.55

123

6.46

0.38

10,000 to

1,000,000

35,175,219

0.82

113

6.37

0.59

1,000,000 to

1,500,000

63,235,713

1.48

118

6.30

0.57

1,500,000 to

2,000,000

85,468,766

2.00

113

6.36

0.78

2,000,000 to

2,500,000

69,375,097

1.62

124

6.32

1.05

2,500,000 to

3,000,000

164,438,255

3.85

115

6.26

0.94

3,000,000 to

4,000,000

132,345,770

3.10

113

6.37

0.86

4,000,000 to

5,000,000

66,538,609

1.56

114

6.00

0.67

5,000,000 to

6,000,000

103,315,304

2.42

118

6.14

0.56

6,000,000 to

7,000,000

97,812,656

2.29

112

6.15

0.79

7,000,000 to

8,000,000

33,729,400

0.79

115

6.26

0.50

8,000,000 to

9,000,000

48,942,818

1.15

115

6.20

0.74

9,000,000 to 10,000,000

110,211,758

2.58

116

6.26

1.12

10,000,000 to 12,000,000

177,925,475

4.17

112

6.19

0.76

12,000,000 to 15,000,000

335,217,258

7.85

117

6.12

0.73

15,000,000 to 20,000,000

548,392,913

12.84

109

6.07

0.84

20,000,000 to 40,000,000

411,900,000

9.65

106

6.11

0.69

40,000,000 to 65,000,000

281,000,000

6.58

115

6.42

0.36

65,000,000 to 100,000,000

376,095,563

8.81

112

5.95

0.53

100,000,000 to 250,000,000

1,106,000,000

25.90

116

6.04

3.51

250,000,000 &

Above

806,000,000

169,855

4,270,571,009

360

100.00

Average Schedule Balance
Maximum Schedule Balance
Minimum Schedule Balance

11,862,697

Current Mortgage

Interest Rate

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

492,475,108

11.53

112

5.46

0.47

4.500%

5.750%

1,111,803,219

26.03

116

5.82

3.27

5.751%

6.000%

105

983,716,834

23.03

115

6.16

0.69

6.001%

6.250%

128

932,152,828

21.83

115

6.35

0.87

6.251%

6.500%

364,886,529

8.54

106

6.63

0.79

6.501%

6.750%

323,149,307

7.57

115

6.76

1.33

6.751%

7.000%

57,065,684

1.34

7.22

1.07

7.001%

7.250%

4,979,610

0.12

114

7.31

1.47

7.251%

7.500%

0.00

7.501%

7.750%

341,889

0.01

172

7.81

0.00

7.751%

Above

360

4,270,571,009

Minimum Mortgage Interest Rate
Maximum Mortgage Interest Rate

100.00

4.680%
7.810%

Fully Amortizing

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

169,855

0.00

115

6.89

0.00

150

25,031,155

0.59

190

6.65

0.15

151

300

0.00

301

450

0.00

451

600

0.00

601

Above

235

115

25,201,010

Minimum Remaining Term
Maximum Remaining Term

0.59

Balloon

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

154,644,725

3.62

6.44

0.93

13,591,257

0.32

6.31

0.00

105

339

4,067,184,777

95.24

115

6.12

1.47

106

140

8,028,489

0.19

175

6.16

0.00

141

175

249,160

0.01

176

6.92

0.00

176

210

1,671,590

0.04

231

6.11

1.38

211

245

0.00

246

& Above

231

353

4,245,369,999

Minimum Remaining Term
Maximum Remaining Term

99.41

Credit Suisse First Boston Mortgage Securities Corp.

Mortgage Loan Characteristics

ABN AMRO Acct: 724103.1

Series 2006-C4

Commercial Mortgage Pass-Through Certificates

30-Nov-06

18-Jan-07

17-Nov-06

15-Dec-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Statement Date:

Geographic Distribution

Distribution of DSCR (PFY)

Distribution of DSCR (Cutoff)

Page 22 of 47

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

625,619,268

14.65

114

6.25

1.15

1.050 1.250

619,002,162

14.49

114

6.53

1.34

1.251 1.450

269,767,380

6.32

115

6.02

1.55

1.451 1.650

123,563,832

2.89

115

6.33

1.75

1.651 1.850

43,309,615

1.01

115

6.31

1.93

1.851 2.050

11,980,202

0.28

115

6.33

2.16

2.051 2.250

19,000,000

0.44

115

5.72

2.30

2.251 2.450

3,472,879

0.08

114

6.37

2.48

2.451 2.650

0.00

2.651 2.850

0.00

2.851 3.050

0.00

3.051 3.250

0.00

3.251 3.450

0.00

3.451 3.650

0.00

3.651 3.850

806,000,000

18.87

117

5.77

4.32

3.851 & Above

191

1,748,855,671

40.95

111

6.12

0.00

Unknown

4.320
0.380

360

4,270,571,009

100.00

Minimum DSCR

Maximum DSCR

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.050 1.250

0.00

1.251 1.450

0.00

1.451 1.650

0.00

1.651 1.850

0.00

1.851 2.050

0.00

2.051 2.250

0.00

2.251 2.450

0.00

2.451 2.650

0.00

2.651 2.850

0.00

2.851 3.050

0.00

3.051 3.250

0.00

3.251 3.450

0.00

3.451 & Above

360

4,270,571,009 100.00

114

6.13

0.00

Unknown

0.000

360

4,270,571,009 100.00

Minimum DSCR

Maximum DSCR

Geographic

Location

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Nebraska

1,610,522,125

37.71

116

6.08

2.54

Undefined

105

782,375,650

18.32

114

6.19

0.86

Multiple States

337,196,351

7.90

102

5.95

0.26

Florida

317,466,460

7.43

115

6.30

1.04

California

250,100,077

5.86

113

6.16

0.93

Michigan

161,466,997

3.78

116

6.11

0.75

Arkansas

118,540,125

2.78

115

6.27

0.63

Massachusetts

114,036,900

2.67

115

6.07

0.38

Illinois

104,234,422

2.44

6.31

0.83

Colorado

101,036,957

2.37

113

6.32

1.21

Ohio

87,552,439

2.05

116

6.18

1.12

Prince Edward Island

84,809,540

1.99

116

5.68

0.07

Indiana

68,690,475

1.61

122

6.48

1.12

Alabama

57,482,253

1.35

115

6.16

0.51

Washington

23,499,263

0.55

115

6.16

1.33

Wisconsin

20,899,028

0.49

116

6.17

1.18

Idaho

11,565,866

0.27

115

6.42

0.74

Utah

6,839,050

0.16

115

6.16

0.44

Oklahoma

6,426,720

0.15

103

6.41

1.25

Oregon

5,830,309

0.14

116

6.39

0.51

100.00

4,270,571,009

360

Credit Suisse First Boston Mortgage Securities Corp.

Mortgage Loan Characteristics

ABN AMRO Acct: 724103.1

Series 2006-C4

Commercial Mortgage Pass-Through Certificates

30-Nov-06

18-Jan-07

17-Nov-06

15-Dec-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Statement Date:

Distribution of Loan Seasoning

Distribution of Property Types

Distribution of Year Loans Maturing

Distribution of Amortization Type

Page 23 of 47

Property Types

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Office

1,889,816,197

44.25

114

6.11

2.42

Retail

108

746,900,003

17.49

115

5.97

0.73

Mixed Use

124

564,547,632

13.22

116

6.15

0.63

Lodging

529,197,659

12.39

112

6.46

0.81

Various

337,196,351

7.90

102

5.95

0.26

Undefined

114,720,554

2.69

124

6.34

0.85

Industrial

88,192,613

2.07

114

6.30

0.66

4,270,571,009

360

100.00

Amortization Type

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Amortizing Balloon

212

743,742,026

17.42

113

6.34

0.91

ARD

179,603,471

4.21

116

6.12

0.52

Full Amortizing

25,201,010

0.59

189

6.65

0.15

IO Maturity Balloon

1,328,643,071

31.11

114

5.89

2.97

IO/Amortizing/Balloon

107

1,993,381,431

46.68

113

6.21

0.71

4,270,571,009

360

100.00

Number of Months

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

915,575,412

21.44

117

3.80

5.84

165

1,457,553,344

34.13

113

0.85

6.25

143

1,346,408,936

31.53

111

0.86

6.36

220,835,443

5.17

118

0.70

6.10

254,753,426

5.97

109

0.03

5.60

4,140,277

0.10

108

0.94

5.78

11,304,171

0.26

106

0.49

5.93

0.00

60,000,000

1.40

138

1.65

4.97

360

4,270,571,009

100.00

Year

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

2006

0.00

2007

0.00

2008

0.00

2009

0.00

2010

147,205,738

3.45

6.46

0.90

2011

7,438,986

0.17

6.09

1.42

2012

13,591,257

0.32

6.31

0.00

2013

0.00

2014

33,301,994

0.78

107

5.61

0.28

2015

328

3,794,449,167

88.85

115

6.14

1.53

2016

274,583,865

6.43

130

5.91

0.72

2017 & Greater

100.00

4,270,571,009

360

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

5.77%

11-Sep-16

CS206C4A

Office

4.32

806,000,000

3,875,517

31-Dec-05

6.75%

11-Jun-16

CS206C4A

Office

1.34

300,000,000

1,688,549

5.56%

11-Jan-16

CS206C4B

Various

0.00

195,095,563

903,931

31-Dec-05

6.37%

11-Jul-16

CS206C4A

Lodging

1.11

181,000,000

961,185

6.35%

11-Sep-16

CS206C4A

Lodging

0.00

100,000,000

528,750

6.64%

11-Jun-16

CS206C4A

Lodging

0.00

100,000,000

553,500

5.97%

1-Jun-16

CS206C4A

Retail

0.00

36,907,000

183,612

5.97%

1-Jun-16

CS206C4A

Retail

0.00

17,415,000

86,640

5.97%

1-Jun-16

CS206C4A

Retail

0.00

10,613,000

52,800

5.97%

1-Jun-16

CS206C4A

Retail

0.00

9,994,000

49,720

5.97%

1-Jun-16

CS206C4A

Retail

0.00

7,517,000

37,397

31-Dec-05

6.24%

11-Jun-16

CS206C4A

Office

1.25

81,000,000

421,474

6.24%

1-Sep-36

CS206C4A

Office

0.00

64,000,000

332,808

5.52%

1-Oct-16

CS206C4B

Mixed Use

0.00

60,800,000

279,477

31-Dec-05

4.97%

11-Jun-18

CS206C4C

Retail

1.65

60,000,000

248,300

31-Dec-05

6.43%

11-Jul-16

CS206C4A

Office

1.29

48,750,000

261,056

31-Dec-05

7.23%

11-Jul-11

CS206C4B

Various

0.97

47,000,000

283,309

31-Dec-05

6.69%

11-Jun-16

CS206C4B

Mixed Use

1.11

28,150,000

156,819

31-Dec-05

6.69%

11-Jun-16

CS206C4B

Mixed Use

1.02

11,300,000

62,950

31-Dec-05

6.69%

11-Jun-16

CS206C4B

Mixed Use

1.10

7,050,000

39,274

6.05%

1-Jul-36

CS206C4A

Retail

0.00

46,000,000

231,917

31-Dec-05

6.33%

11-Sep-16

CS206C4B

Mixed Use

0.92

43,000,000

226,825

30-Dec-05

6.57%

11-Jun-11

CS206C4A

Office

0.91

42,350,000

231,866

Page 24 of 47

* NOI and DSCR, if available and reportable under the terms of the trust agreement, are based on information obtained from the related borrower, and no other party to the agreement shall be held liable for the accuracy or methodology used to determine such figures.

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.08%

1-Sep-16

CS206C4A

Office

0.40

40,000,000

202,667

5.98%

11-Jan-16

CS206C4B

Various

0.00

39,874,381

198,707

6.21%

1-Aug-16

CS206C4A

Office

0.00

18,800,000

97,290

6.21%

1-Aug-16

CS206C4A

Industrial

0.00

14,100,000

72,968

6.21%

1-Aug-16

CS206C4A

Industrial

0.00

6,900,000

35,708

6.11%

1-Jul-16

CS206C4A

Retail

0.00

37,200,000

189,410

30-Dec-05

5.73%

1-Aug-16

CS206C4A

Office

0.95

33,500,000

159,963

31-Dec-05

6.26%

11-Jun-16

CS206C4A

Office

1.07

33,155,250

172,960

31-Dec-05

5.67%

1-Aug-16

CS206C4A

Retail

1.20

33,000,000

155,925

31-Dec-05

6.14%

11-Aug-16

CS206C4A

Office

1.17

32,000,000

163,733

31-Dec-05

6.24%

1-Sep-36

CS206C4A

Office

1.11

26,800,000

139,271

4.68%

1-Jul-11

CS206C4A

Retail

0.00

25,148,071

98,077

6.08%

11-Jan-16

CS206C4A

Mixed Use

0.00

25,000,000

126,667

31-Dec-05

6.01%

1-Jul-16

CS206C4A

Retail

1.50

25,000,000

125,208

31-Dec-05

6.26%

11-Aug-16

CS206C4A

Office

1.81

24,400,000

127,283

31-Dec-05

6.63%

11-Jun-11

CS206C4A

Lodging

1.55

23,226,809

159,905

31-Dec-05

6.71%

11-May-16

CS206C4A

Lodging

1.72

21,814,307

151,445

31-Dec-05

6.13%

1-Jul-16

CS206C4A

Office

1.34

21,760,000

111,157

31-Dec-05

6.26%

11-Jun-16

CS206C4A

Office

1.26

21,257,095

110,891

31-Dec-05

5.94%

11-Apr-16

CS206C4A

Retail

1.47

20,200,000

99,990

5.41%

11-Dec-15

CS206C4A

Office

0.00

19,360,000

87,281

31-Dec-05

5.72%

1-Jul-36

CS206C4A

Retail

2.30

19,000,000

90,567

31-Dec-05

6.27%

1-Jun-16

CS206C4A

Mixed Use

1.45

18,924,000

98,878

Page 25 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.24%

1-Apr-16

CS206C4A

Retail

1.66

18,617,975

115,325

6.17%

1-Jul-16

CS206C4F

Mixed Use

0.00

18,500,000

95,121

31-Dec-05

6.15%

1-Sep-16

CS206C4A

Retail

0.92

18,500,000

94,813

31-Dec-05

5.86%

11-Mar-16

CS206C4A

Various

1.17

18,119,496

88,484

6.60%

1-May-21

CS206C4A

0.00

17,937,088

160,859

6.18%

11-Jul-16

CS206C4A

Office

0.00

17,748,000

91,402

6.09%

1-May-16

CS206C4A

Various

0.00

17,464,852

106,390

31-Dec-05

6.20%

1-Sep-16

CS206C4A

Retail

1.49

17,253,013

105,957

31-Dec-05

6.11%

1-Aug-16

CS206C4A

Office

1.56

17,200,000

87,577

31-Dec-05

6.21%

1-Aug-16

CS206C4B

Mixed Use

1.10

16,940,394

104,230

6.32%

11-Jul-16

CS206C4A

Office

0.00

16,400,000

86,373

31-Dec-05

6.26%

11-Jun-16

CS206C4A

Office

0.91

16,024,164

83,593

6.34%

11-Jul-16

CS206C4A

Retail

0.00

16,000,000

84,533

30-Dec-05

6.16%

11-Jul-16

CS206C4A

Retail

1.22

15,013,276

92,055

6.20%

11-Jul-16

CS206C4A

Office

0.00

14,800,000

76,467

31-Dec-05

6.34%

11-Jul-16

CS206C4A

Office

1.44

14,501,000

76,614

31-Dec-05

6.24%

1-Jul-16

CS206C4A

1.25

14,200,000

73,840

30-Dec-05

5.96%

11-Jul-16

CS206C4B

Mixed Use

1.16

14,100,000

70,030

31-Dec-05

6.23%

11-Jul-16

CS206C4B

Mixed Use

0.99

13,591,491

83,868

6.31%

1-Aug-13

CS206C4A

Retail

0.00

13,591,257

84,504

31-Dec-05

6.26%

11-Jun-16

CS206C4A

Office

1.45

13,577,550

70,830

31-Dec-05

6.26%

11-Jun-16

CS206C4A

Office

1.32

13,564,177

70,760

6.29%

1-Aug-16

CS206C4A

Industrial

0.00

13,325,000

69,845

Page 26 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

30-Dec-05

6.02%

11-Jul-16

CS206C4A

Retail

1.04

13,200,000

66,220

6.01%

11-Aug-16

CS206C4A

Retail

0.00

13,000,000

65,108

31-Dec-05

6.14%

11-Jul-16

CS206C4A

Retail

1.21

12,375,000

63,319

31-Dec-05

6.63%

11-Jul-16

CS206C4A

Various

1.21

11,728,545

80,636

31-Dec-05

6.29%

1-Jul-36

CS206C4A

Office

1.28

11,600,000

60,803

31-Dec-05

6.42%

1-Sep-16

CS206C4A

Retail

1.32

11,470,214

72,084

29-Dec-05

5.78%

1-Sep-16

CS206C4A

Mixed Use

1.80

11,250,000

54,188

30-Dec-05

6.13%

1-Sep-16

CS206C4A

1.08

11,000,000

56,192

31-Dec-05

6.18%

11-Aug-16

CS206C4B

Mixed Use

0.96

10,650,000

54,848

31-Dec-05

6.24%

11-Jul-16

CS206C4A

Office

1.15

10,300,000

53,560

31-Dec-05

6.20%

1-Aug-16

CS206C4A

Industrial

1.35

10,300,000

53,217

31-Dec-05

6.08%

1-Sep-16

CS206C4A

Office

0.45

10,000,000

50,700

31-Dec-05

6.05%

1-Jul-16

CS206C4A

Lodging

1.80

9,896,471

71,949

6.32%

11-Jun-16

CS206C4A

Office

0.00

9,808,664

61,097

31-Dec-05

6.63%

11-Jul-16

CS206C4A

Lodging

1.52

9,243,684

63,552

6.25%

1-Aug-16

CS206C4A

0.00

8,968,729

55,415

31-Dec-05

6.44%

11-Jun-16

CS206C4A

Lodging

2.00

8,434,939

57,074

5.92%

1-Jul-16

CS206C4F

Mixed Use

0.00

8,232,745

44,933

6.44%

11-Aug-16

CS206C4A

Lodging

0.00

8,092,988

51,004

31-Dec-05

5.90%

1-Aug-16

CS206C4A

Retail

1.87

8,000,000

39,353

31-Dec-05

5.98%

1-May-16

CS206C4A

Office

1.25

7,850,000

39,106

6.35%

11-Jul-16

CS206C4A

Office

0.00

7,800,000

41,275

31-Dec-05

6.45%

11-Jul-16

CS206C4A

Office

1.18

7,750,000

41,656

Page 27 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.18%

1-Aug-16

CS206C4A

Industrial

1.97

7,600,000

39,140

31-Dec-05

6.18%

1-Aug-16

CS206C4B

Mixed Use

0.87

7,600,000

39,140

6.23%

1-Jun-16

CS206C4D

Mixed Use

0.00

7,460,517

46,081

31-Dec-05

6.09%

1-Aug-12

CS206C4A

Office

1.42

7,438,986

48,736

31-Dec-05

6.21%

1-Aug-16

CS206C4A

Retail

0.52

7,346,152

45,199

5.61%

1-Sep-16

CS206C4A

Retail

0.00

7,300,000

34,128

6.15%

1-Aug-16

CS206C4B

Mixed Use

0.00

7,100,000

36,388

31-Dec-05

5.90%

1-Jul-16

CS206C4A

1.52

7,000,000

34,417

100

6.20%

11-Aug-16

CS206C4A

Office

0.00

6,950,000

35,908

101

6.51%

1-Jul-16

CS206C4A

Industrial

0.00

6,675,000

36,184

102

6.02%

11-Aug-16

CS206C4A

Retail

0.00

6,635,000

33,286

103

31-Dec-05

6.34%

11-Aug-16

CS206C4B

Mixed Use

1.11

6,565,915

43,906

104

31-Dec-05

5.98%

1-Aug-16

CS206C4A

0.72

6,500,000

32,392

105

31-Dec-05

6.28%

11-Aug-16

CS206C4A

Industrial

1.82

6,450,000

33,755

106

6.21%

1-Jul-21

CS206C4D

Mixed Use

0.00

6,288,211

35,590

107

31-Dec-05

6.31%

1-Jul-16

CS206C4B

Mixed Use

1.34

6,273,499

39,036

108

5.90%

1-Oct-15

CS206C4B

Mixed Use

0.00

6,250,000

30,729

109

31-Dec-05

6.19%

1-May-36

CS206C4A

Office

0.78

6,240,000

32,188

110

5.98%

11-Aug-16

CS206C4B

Mixed Use

0.00

6,226,000

31,026

111

30-Dec-05

6.75%

1-Apr-16

CS206C4A

Lodging

1.59

6,164,519

43,009

112

6.31%

11-Jun-16

CS206C4A

Retail

0.00

6,158,000

32,381

113

5.15%

1-Mar-16

CS206C4A

Retail

0.00

6,039,161

33,308

114

5.57%

1-Jun-36

CS206C4A

Retail

0.00

5,963,471

34,331

115

Page 28 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.03%

11-May-16

CS206C4B

Mixed Use

1.48

5,955,723

36,089

116

6.33%

11-Aug-16

CS206C4A

Office

0.00

5,900,194

36,790

117

31-Dec-05

6.44%

11-Aug-16

CS206C4A

Lodging

1.68

5,740,839

36,180

118

6.12%

1-Jul-16

CS206C4A

Retail

0.00

5,750,000

29,325

119

31-Dec-05

6.10%

11-Jul-16

CS206C4A

Retail

1.08

5,500,000

27,958

120

31-Dec-05

5.69%

1-Feb-16

CS206C4B

Mixed Use

1.17

5,500,000

26,079

121

5.62%

1-May-16

CS206C4A

Retail

0.00

5,360,000

25,103

122

31-Dec-05

5.77%

1-Jun-16

CS206C4A

0.58

5,300,000

25,484

123

31-Dec-05

6.54%

1-Jul-16

CS206C4A

Lodging

1.02

5,278,897

33,639

124

5.85%

1-Oct-16

CS206C4B

Mixed Use

0.00

5,235,315

33,346

125

30-Dec-05

5.96%

1-Nov-15

CS206C4A

Lodging

1.09

5,054,171

33,056

126

31-Dec-05

6.53%

11-Jun-16

CS206C4A

Retail

1.86

5,000,000

27,208

127

31-Dec-05

6.14%

1-Jul-16

CS206C4A

Office

1.27

5,000,000

25,583

128

31-Dec-05

6.36%

1-Aug-16

CS206C4A

Office

1.02

4,983,058

31,144

129

31-Dec-05

7.31%

11-Jun-16

CS206C4A

1.47

4,979,610

34,313

130

31-Dec-05

6.60%

11-Jul-16

CS206C4A

Lodging

1.70

4,969,555

34,073

131

31-Dec-05

6.45%

11-Jun-16

CS206C4A

Retail

1.81

4,974,965

31,439

132

6.23%

1-Jun-16

CS206C4D

Mixed Use

0.00

4,973,678

30,721

133

6.44%

11-May-16

CS206C4A

Retail

0.00

4,954,205

31,300

134

5.99%

1-Jul-16

CS206C4E

Mixed Use

0.00

4,896,476

25,157

135

6.42%

11-Aug-16

CS206C4A

Retail

0.00

4,860,000

25,981

136

31-Dec-05

6.72%

1-Jul-16

CS206C4B

Mixed Use

1.47

4,841,478

31,425

137

31-Dec-05

7.21%

11-Jul-16

CS206C4A

Mixed Use

1.48

4,744,087

34,355

138

Page 29 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

5.96%

11-Mar-16

CS206C4A

Retail

1.32

4,635,000

23,021

139

6.07%

1-Jul-16

CS206C4D

Mixed Use

0.00

4,500,000

22,763

140

31-Dec-05

6.48%

11-Jul-16

CS206C4A

Industrial

1.35

4,481,821

28,384

141

5.97%

1-Jul-16

CS206C4F

Mixed Use

0.00

4,479,513

26,893

142

5.91%

1-Apr-16

CS206C4A

Retail

0.00

4,465,902

26,720

143

6.49%

11-Jul-16

CS206C4A

Lodging

0.00

4,397,510

29,850

144

6.21%

1-Jul-16

CS206C4A

Mixed Use

0.00

4,400,000

22,770

145

30-Dec-05

6.10%

1-Sep-11

CS206C4A

Office

1.37

4,400,000

22,367

146

6.20%

1-Aug-16

CS206C4A

Office

0.00

4,359,625

26,796

147

6.33%

11-Sep-16

CS206C4A

Industrial

0.00

4,370,000

23,034

148

30-Dec-05

6.47%

11-May-16

CS206C4B

Mixed Use

1.50

4,258,425

26,987

149

6.41%

1-Jun-16

CS206C4A

Retail

0.00

4,123,028

27,822

150

30-Dec-05

6.05%

11-Jul-16

CS206C4B

Mixed Use

1.10

4,104,379

24,876

151

31-Dec-05

5.97%

1-Sep-16

CS206C4A

Retail

1.55

4,063,377

24,353

152

31-Dec-05

6.43%

1-Aug-16

CS206C4A

Lodging

1.65

4,054,268

27,324

153

31-Dec-05

6.43%

1-Aug-16

CS206C4A

Lodging

1.62

4,054,268

27,324

154

31-Dec-05

6.57%

1-Jul-16

CS206C4A

Retail

1.40

4,021,540

25,706

155

6.13%

11-Jun-16

CS206C4A

Retail

0.00

4,000,000

20,433

156

31-Dec-05

6.08%

1-Aug-16

CS206C4A

Office

1.91

4,000,000

20,267

157

31-Dec-05

6.02%

1-Jul-16

CS206C4A

Office

2.22

4,000,000

20,060

158

31-Dec-05

6.23%

1-Aug-16

CS206C4A

Retail

1.08

3,967,437

29,191

159

31-Dec-05

6.20%

11-Jul-16

CS206C4A

Retail

1.28

3,978,799

24,499

160

31-Dec-05

6.30%

1-Jul-16

CS206C4A

Office

1.83

3,916,988

27,686

161

Page 30 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.28%

1-Jul-16

CS206C4A

Retail

0.00

3,920,000

20,515

162

6.13%

11-May-16

CS206C4B

Mixed Use

0.00

3,900,000

19,923

163

31-Dec-05

7.09%

1-Aug-16

CS206C4A

Lodging

1.95

3,882,399

27,789

164

6.49%

11-Jun-16

CS206C4A

Retail

0.00

3,884,632

24,650

165

31-Dec-05

6.40%

11-Jul-16

CS206C4A

Office

1.45

3,869,999

24,307

166

31-Dec-05

6.43%

1-Aug-16

CS206C4A

Lodging

1.63

3,830,412

25,815

167

31-Dec-05

6.35%

1-Aug-16

CS206C4A

1.26

2,243,375

15,015

168

31-Dec-05

6.35%

1-Aug-16

CS206C4A

1.26

1,583,046

10,596

169

31-Dec-05

6.37%

11-Jun-16

CS206C4B

Mixed Use

1.25

3,830,367

24,006

170

31-Dec-05

6.08%

1-Aug-16

CS206C4B

Mixed Use

1.41

3,800,000

19,253

171

31-Dec-05

6.54%

11-Aug-16

CS206C4A

Lodging

1.42

3,781,057

25,753

172

30-Dec-05

6.28%

11-Jul-16

CS206C4A

Retail

1.28

3,781,000

19,787

173

6.28%

1-Jul-16

CS206C4A

Industrial

0.00

3,780,000

19,782

174

5.86%

11-Jan-16

CS206C4B

Mixed Use

0.00

3,758,702

22,442

175

30-Dec-05

5.69%

1-Aug-16

CS206C4A

Mixed Use

1.40

3,760,000

17,829

176

31-Dec-05

5.82%

11-Mar-16

CS206C4A

Mixed Use

1.13

3,700,000

17,945

177

31-Dec-05

6.96%

1-Jul-16

CS206C4A

Lodging

1.75

3,678,926

26,056

178

31-Dec-05

6.33%

1-May-16

CS206C4B

Mixed Use

1.13

3,588,594

22,416

179

5.92%

1-Jul-16

CS206C4F

Mixed Use

0.00

3,592,470

19,607

180

31-Dec-05

6.44%

1-Aug-16

CS206C4A

1.36

3,588,024

22,613

181

6.35%

1-Aug-16

CS206C4A

Retail

0.00

3,587,777

22,403

182

31-Dec-05

6.54%

11-May-16

CS206C4A

Office

0.76

3,579,684

22,849

183

31-Dec-05

6.25%

1-Aug-16

CS206C4A

0.71

3,487,839

21,550

184

Page 31 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.27%

11-Jul-16

CS206C4A

Office

0.00

3,485,138

21,596

185

31-Dec-05

6.37%

11-Jun-16

CS206C4A

Lodging

2.48

3,472,879

23,349

186

30-Dec-05

6.41%

11-May-16

CS206C4A

Various

1.32

3,444,038

23,268

187

6.10%

11-Sep-16

CS206C4B

Mixed Use

0.00

3,450,000

17,538

188

31-Dec-05

6.17%

11-Jun-16

CS206C4A

Retail

1.51

3,431,591

21,063

189

6.09%

1-Jul-16

CS206C4D

Mixed Use

0.00

3,400,000

17,255

190

31-Dec-05

6.14%

11-Jun-16

CS206C4B

Mixed Use

1.50

3,378,934

20,692

191

31-Dec-05

6.38%

1-Aug-16

CS206C4A

Retail

0.92

3,338,709

20,917

192

31-Dec-05

6.26%

11-Jul-16

CS206C4A

Retail

1.40

3,313,617

22,054

193

31-Dec-05

6.41%

1-Sep-16

CS206C4A

Lodging

2.15

3,287,102

22,088

194

5.80%

11-Mar-16

CS206C4A

Retail

0.00

3,205,000

15,491

195

5.61%

1-May-16

CS206C4D

Mixed Use

0.00

3,189,355

16,745

196

6.48%

11-Jul-16

CS206C4A

0.00

3,137,275

19,869

197

31-Dec-05

6.49%

1-Apr-16

CS206C4A

Lodging

1.46

3,117,955

21,249

198

6.23%

11-Aug-16

CS206C4A

Office

0.00

3,125,000

16,224

199

6.61%

11-Sep-16

CS206C4B

Mixed Use

0.00

3,090,087

19,819

200

31-Dec-05

6.37%

11-Aug-16

CS206C4B

Mixed Use

1.35

3,059,319

19,174

201

31-Dec-05

6.45%

1-Sep-16

CS206C4A

Office

1.54

3,042,151

19,178

202

6.03%

1-Aug-16

CS206C4A

Retail

0.00

3,025,000

15,196

203

31-Dec-05

6.24%

11-Jun-16

CS206C4B

Mixed Use

1.54

3,000,000

15,600

204

31-Dec-05

6.59%

1-Apr-16

CS206C4A

2.09

3,000,000

16,475

205

31-Dec-05

6.11%

11-Jun-16

CS206C4A

Office

1.00

2,981,284

18,199

206

5.91%

1-May-16

CS206C4D

Mixed Use

0.00

2,980,415

17,813

207

Page 32 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.00%

11-Jun-16

CS206C4A

Retail

1.33

2,950,000

14,750

208

31-Dec-05

6.41%

11-Jul-16

CS206C4A

Industrial

1.36

2,921,948

18,372

209

31-Dec-05

6.40%

11-Aug-16

CS206C4B

Mixed Use

1.09

2,900,000

15,467

210

31-Dec-05

6.32%

1-May-16

CS206C4B

Mixed Use

0.38

2,882,764

17,988

211

31-Dec-05

6.28%

1-May-16

CS206C4A

Retail

1.53

2,882,603

17,912

212

31-Dec-05

6.41%

1-Aug-16

CS206C4A

1.37

2,790,621

17,533

213

31-Dec-05

6.77%

11-Jul-16

CS206C4A

Retail

1.39

2,787,467

18,185

214

5.57%

1-Jun-16

CS206C4F

Mixed Use

0.00

2,782,953

16,021

215

6.49%

1-Jun-26

CS206C4G

Mixed Use

0.00

2,765,236

20,860

216

6.63%

11-Jul-16

CS206C4A

Retail

0.00

2,769,169

17,810

217

31-Dec-05

6.16%

1-Aug-16

CS206C4A

Retail

1.70

2,750,000

14,117

218

31-Dec-05

6.01%

11-May-16

CS206C4A

Lodging

1.90

2,723,707

17,735

219

30-Dec-05

6.36%

11-Jul-16

CS206C4A

Retail

1.30

2,724,000

14,437

220

31-Dec-05

6.85%

11-Jul-26

CS206C4A

Retail

1.39

2,701,616

20,898

221

31-Dec-05

5.75%

11-Dec-15

CS206C4A

Retail

1.47

2,637,823

15,581

222

31-Dec-05

6.63%

11-Jul-16

CS206C4A

Retail

1.24

2,614,773

16,817

223

6.03%

1-Jun-16

CS206C4F

Mixed Use

0.00

2,593,455

14,360

224

6.42%

1-Aug-16

CS206C4A

Retail

0.00

2,586,760

17,426

225

31-Dec-05

6.57%

11-Jun-16

CS206C4B

Mixed Use

1.22

2,590,000

14,180

226

6.44%

1-Sep-16

CS206C4A

Retail

0.00

971,209

6,544

227

6.44%

1-Sep-16

CS206C4A

Retail

0.00

881,559

5,940

228

6.44%

1-Sep-16

CS206C4A

Retail

0.00

702,258

4,732

229

30-Dec-05

6.60%

11-Aug-16

CS206C4A

Retail

1.64

2,541,827

16,286

230

Page 33 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.48%

11-Aug-16

CS206C4A

1.24

2,516,678

15,927

231

31-Dec-05

6.27%

11-Jul-16

CS206C4B

Mixed Use

1.32

2,500,000

13,063

232

6.00%

1-May-16

CS206C4F

Mixed Use

0.00

2,492,774

13,755

233

31-Dec-05

6.10%

11-Apr-16

CS206C4B

Mixed Use

1.13

2,481,836

15,150

234

6.37%

1-Jul-16

CS206C4A

0.00

2,469,715

15,464

235

6.08%

1-Jul-16

CS206C4D

Mixed Use

0.00

2,470,128

13,756

236

31-Dec-05

6.63%

11-Jul-16

CS206C4A

Retail

1.50

2,440,455

15,696

237

6.55%

11-Jul-16

CS206C4A

Retail

0.00

2,410,387

15,376

238

5.74%

1-May-16

CS206C4D

Mixed Use

0.00

2,400,000

11,480

239

31-Dec-05

6.48%

11-Aug-16

CS206C4B

Mixed Use

0.63

2,390,305

15,138

240

31-Dec-05

6.49%

1-Aug-16

CS206C4A

1.34

2,360,213

14,952

241

6.50%

1-May-16

CS206C4A

Retail

0.00

2,336,611

14,854

242

31-Dec-05

6.18%

1-Jul-16

CS206C4A

Office

0.87

2,329,852

14,301

243

6.85%

1-Aug-16

CS206C4A

Various

0.00

2,293,051

15,071

244

6.44%

11-Jul-16

CS206C4A

Retail

0.00

2,290,619

14,447

245

6.39%

1-Sep-16

CS206C4A

Retail

0.00

2,244,134

14,059

246

31-Dec-05

6.45%

1-Aug-16

CS206C4A

Office

1.32

2,242,532

14,148

247

30-Dec-05

6.10%

11-Jul-16

CS206C4B

Mixed Use

0.92

2,195,258

13,362

248

31-Dec-05

6.15%

1-Jul-16

CS206C4B

Mixed Use

1.50

2,200,000

11,282

249

6.42%

11-Jun-16

CS206C4A

Retail

0.00

2,199,000

11,765

250

6.23%

1-Aug-16

CS206C4A

Retail

0.00

2,192,321

13,517

251

6.38%

1-Jul-16

CS206C4A

Retail

0.00

2,190,898

13,732

252

31-Dec-05

6.30%

11-Aug-16

CS206C4A

1.60

2,185,855

14,581

253

Page 34 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.30%

11-Jun-16

CS206C4B

Mixed Use

1.73

2,188,601

13,617

254

31-Dec-05

6.38%

11-May-16

CS206C4A

Retail

1.59

2,187,107

13,732

255

30-Dec-05

6.60%

11-Jul-16

CS206C4A

Various

1.54

2,176,425

13,955

256

31-Dec-05

6.33%

1-Aug-16

CS206C4A

Industrial

1.42

2,172,554

13,529

257

31-Dec-05

6.53%

11-Jun-16

CS206C4A

Retail

1.36

2,171,275

13,835

258

31-Dec-05

6.18%

1-Sep-16

CS206C4A

Office

1.72

2,169,067

13,293

259

31-Dec-05

6.57%

11-Jul-16

CS206C4A

Retail

1.36

2,161,422

13,816

260

6.29%

1-Jul-16

CS206C4A

Retail

0.00

2,143,901

13,312

261

31-Dec-05

6.81%

11-Jul-16

CS206C4A

Industrial

1.03

2,119,072

13,881

262

31-Dec-05

6.52%

1-Jul-11

CS206C4A

Industrial

1.05

2,120,000

11,519

263

6.35%

11-Aug-16

CS206C4A

Retail

0.00

2,092,868

13,067

264

31-Dec-05

6.23%

11-Jul-16

CS206C4A

Retail

1.17

2,088,945

12,903

265

31-Dec-05

6.47%

1-Aug-16

CS206C4A

Retail

1.35

2,048,211

12,948

266

31-Dec-05

6.33%

11-Jul-16

CS206C4B

Mixed Use

1.33

2,050,000

10,814

267

6.58%

11-Jul-16

CS206C4A

Retail

0.00

2,020,000

11,076

268

31-Dec-05

6.18%

1-Jul-16

CS206C4A

Office

0.78

1,991,326

12,223

269

6.18%

1-Jun-16

CS206C4B

Mixed Use

0.00

1,989,352

12,223

270

6.11%

11-Mar-16

CS206C4A

0.00

1,983,823

12,133

271

6.08%

11-Jun-16

CS206C4A

Retail

0.00

1,937,751

11,792

272

6.38%

1-May-16

CS206C4B

Mixed Use

0.00

1,933,609

12,144

273

6.33%

1-Aug-16

CS206C4A

Retail

0.00

1,920,015

12,827

274

6.17%

1-Jul-16

CS206C4D

Mixed Use

0.00

1,850,000

9,512

275

30-Dec-05

6.76%

11-Jul-16

CS206C4B

Mixed Use

1.50

1,824,090

11,888

276

Page 35 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.39%

11-Jul-16

CS206C4A

Office

0.00

1,755,412

10,997

277

6.14%

1-Jul-16

CS206C4F

Mixed Use

0.00

1,746,634

9,800

278

6.10%

1-Jul-16

CS206C4D

Mixed Use

0.00

1,742,268

10,605

279

5.99%

1-Jun-21

CS206C4F

Mixed Use

0.00

1,740,279

10,481

280

30-Dec-05

6.50%

11-Apr-16

CS206C4A

Retail

1.35

1,738,386

11,061

281

31-Dec-05

6.80%

11-Jul-16

CS206C4A

Retail

1.62

1,722,539

11,272

282

6.50%

1-Aug-16

CS206C4A

Retail

0.00

1,714,357

10,872

283

31-Dec-05

6.33%

11-Aug-16

CS206C4B

Mixed Use

1.28

1,700,000

8,968

284

31-Dec-05

6.72%

1-Sep-11

CS206C4A

Mixed Use

1.41

1,693,702

11,713

285

6.29%

1-Aug-16

CS206C4B

Mixed Use

0.00

1,694,147

10,511

286

31-Dec-05

6.46%

1-Jul-16

CS206C4A

2.13

1,693,100

10,700

287

31-Dec-05

6.36%

11-Jun-16

CS206C4A

Retail

1.28

1,689,990

10,589

288

30-Dec-05

6.11%

11-Mar-26

CS206C4A

Retail

1.38

1,671,590

12,287

289

6.47%

11-Aug-16

CS206C4A

Mixed Use

0.00

1,654,516

10,460

290

5.70%

1-May-16

CS206C4D

Mixed Use

0.00

1,638,711

9,577

291

31-Dec-05

6.38%

11-Jul-16

CS206C4A

Retail

1.19

1,635,000

8,693

292

5.87%

1-Aug-16

CS206C4D

Mixed Use

0.00

1,622,129

8,794

293

31-Dec-05

6.79%

11-Jul-16

CS206C4B

Mixed Use

1.38

1,613,931

10,550

294

6.16%

1-Jul-16

CS206C4F

Mixed Use

0.00

1,600,000

8,213

295

31-Dec-05

6.28%

1-Sep-16

CS206C4B

Mixed Use

2.05

1,600,000

8,368

296

6.39%

1-Aug-16

CS206C4A

Retail

0.00

1,594,616

9,998

297

6.34%

1-Aug-16

CS206C4B

Mixed Use

0.00

1,594,554

9,945

298

6.41%

11-Jul-16

CS206C4A

Retail

0.00

1,593,427

10,019

299

Page 36 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.17%

1-Jul-16

CS206C4B

Mixed Use

0.00

1,593,045

9,768

300

31-Dec-05

6.18%

1-Aug-16

CS206C4A

1.40

1,586,890

11,630

301

31-Dec-05

6.48%

1-Sep-16

CS206C4A

Retail

1.40

1,570,969

9,929

302

6.55%

11-Aug-16

CS206C4A

0.00

1,520,055

9,689

303

5.83%

11-Jan-16

CS206C4B

Mixed Use

0.00

1,502,453

8,854

304

6.39%

1-Aug-16

CS206C4A

Retail

0.00

1,494,952

9,373

305

6.34%

1-Aug-16

CS206C4B

Mixed Use

0.00

1,494,894

9,324

306

6.13%

1-Jul-16

CS206C4F

Mixed Use

0.00

1,490,059

9,784

307

6.33%

1-Jul-16

CS206C4F

Mixed Use

0.00

1,447,413

8,314

308

6.04%

1-Sep-16

CS206C4F

Mixed Use

0.00

1,396,066

8,430

309

31-Dec-05

6.69%

11-Jul-16

CS206C4B

Mixed Use

1.32

1,393,370

9,025

310

5.84%

1-Jun-16

CS206C4D

Mixed Use

0.00

1,391,962

8,250

311

31-Dec-05

6.25%

11-Apr-16

CS206C4B

Mixed Use

1.47

1,390,164

8,620

312

5.91%

1-Jul-16

CS206C4F

Mixed Use

0.00

1,347,166

7,343

313

31-Dec-05

6.38%

11-May-16

CS206C4A

Retail

1.56

1,342,088

8,427

314

31-Dec-05

6.54%

11-Jul-16

CS206C4A

Retail

1.32

1,340,000

7,303

315

6.11%

1-Jul-16

CS206C4D

Mixed Use

0.00

1,322,422

7,392

316

6.23%

1-Aug-16

CS206C4A

Retail

0.00

1,315,393

8,110

317

31-Dec-05

6.40%

11-Apr-16

CS206C4B

Mixed Use

1.58

1,287,199

8,107

318

6.30%

11-Aug-16

CS206C4A

Retail

0.00

1,274,603

7,923

319

31-Dec-05

6.69%

1-Aug-16

CS206C4A

Mixed Use

1.89

1,270,999

8,219

320

31-Dec-05

6.56%

1-Sep-11

CS206C4B

Mixed Use

1.41

1,267,157

8,636

321

6.75%

1-Jul-16

CS206C4A

Retail

0.00

1,250,253

8,141

322

Page 37 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.52%

11-Jun-16

CS206C4A

Retail

1.16

1,243,842

7,917

323

6.51%

11-Aug-16

CS206C4A

Retail

0.00

1,230,958

7,814

324

31-Dec-05

6.91%

11-Aug-16

CS206C4A

1.29

1,195,637

7,911

325

6.38%

1-Jul-16

CS206C4D

Mixed Use

0.00

1,195,035

7,490

326

6.21%

1-Jul-16

CS206C4A

Retail

0.00

1,194,832

7,357

327

30-Dec-05

6.45%

11-Jun-16

CS206C4B

Mixed Use

0.69

1,193,992

7,545

328

31-Dec-05

6.25%

11-Apr-16

CS206C4B

Mixed Use

1.45

1,164,759

7,222

329

6.73%

1-Jul-16

CS206C4A

Retail

0.00

1,145,628

7,444

330

31-Dec-05

6.36%

11-Jun-16

CS206C4B

Mixed Use

1.21

1,094,378

6,852

331

6.34%

1-Aug-16

CS206C4B

Mixed Use

0.00

996,596

6,216

332

6.23%

1-Jun-16

CS206C4F

Mixed Use

0.00

997,659

5,663

333

6.41%

1-May-16

CS206C4F

Mixed Use

0.00

994,180

6,262

334

31-Dec-05

6.35%

11-Jun-16

CS206C4B

Mixed Use

1.11

990,994

6,659

335

6.57%

11-Aug-16

CS206C4B

Mixed Use

0.00

946,934

6,048

336

6.20%

1-Jul-16

CS206C4D

Mixed Use

0.00

934,947

5,751

337

30-Dec-05

6.48%

11-Apr-16

CS206C4B

Mixed Use

1.63

908,899

5,771

338

6.06%

1-Jul-16

CS206C4F

Mixed Use

0.00

895,987

5,431

339

6.66%

11-Aug-16

CS206C4A

Industrial

0.00

877,219

5,655

340

5.86%

1-May-16

CS206C4F

Mixed Use

0.00

844,388

5,020

341

6.38%

11-Jul-16

CS206C4A

Retail

0.00

819,171

5,143

342

6.26%

1-Jul-16

CS206C4D

Mixed Use

0.00

800,000

4,173

343

31-Dec-05

6.83%

11-Aug-16

CS206C4B

Mixed Use

1.92

797,571

5,231

344

6.27%

1-Aug-16

CS206C4B

Mixed Use

0.00

797,233

4,936

345

Page 38 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note

Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

31-Dec-05

6.73%

11-Aug-16

CS206C4B

Mixed Use

1.41

747,668

4,855

346

6.34%

1-Aug-16

CS206C4B

Mixed Use

0.00

747,447

4,662

347

31-Dec-05

7.18%

11-Jun-16

CS206C4A

1.38

746,842

5,081

348

30-Dec-05

6.92%

11-May-16

CS206C4A

1.67

746,139

4,950

349

30-Dec-05

6.39%

11-Jun-16

CS206C4A

Retail

1.36

744,209

5,013

350

7.12%

1-Jun-26

CS206C4D

Mixed Use

0.00

692,356

5,478

351

6.19%

1-Jun-16

CS206C4D

Mixed Use

0.00

621,680

3,824

352

6.59%

1-Jun-26

CS206C4D

Mixed Use

0.00

592,971

4,505

353

6.37%

1-Jul-16

CS206C4D

Mixed Use

0.00

500,000

2,654

354

6.25%

1-Aug-16

CS206C4D

Mixed Use

0.00

498,263

3,079

355

5.80%

1-Jun-16

CS206C4F

Mixed Use

0.00

497,104

2,934

356

31-Dec-05

6.56%

11-Jun-16

CS206C4A

Retail

1.39

398,047

2,544

357

7.81%

1-Apr-21

CS206C4D

Mixed Use

0.00

341,889

3,307

358

6.92%

1-Aug-21

CS206C4G

Mixed Use

0.00

249,160

1,650

359

6.89%

1-Jul-16

CS206C4G

Mixed Use

0.00

169,855

2,022

360

4,270,571,009

22,719,264

Page 39 of 47

(1) Legend:

A. In Grace Period
B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. Delinquent 2 months

3. Delinquent 3+ months
4. Performing Matured Balloon

7. Foreclosure

9. REO

5. Non Performing Matured Ballon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Appraisal Reduction Detail

Disclosure

Control#

Appraisal

Red. Date

Scheduled

Balance

ASER

Note

Rate

Maturity

Date

Property

Type

Geographic

Location

Appraisal

Value Date

DSCR

Statement Date:

Remaining Term

Life

Amount

Current P&I

Advance

Page 40 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Specially Serviced (Part I) ~ Loan Detail (End of Period)

Disclosure

Control #

Servicing

Xfer Date

Balance

Maturity

Date

Remaining

Property

Type

Geo.

Location

NOI

DSCR

NOI

Date

Schedule

Actual

Life

Amort.

Statement Date:

Loan

Status

Code(1)

Note Rate

5-Dec-06

3,882,399

116

296

7.09%

1-Aug-16

Lodging

3,896,022

648,722

1.95 31-Dec-05

164

3,882,399

3,896,022

Page 41 of 47

(1) Legend:

A. P&I Adv - in Grace Period

B. P&I Adv - < one month delinq

1. P&I Adv - delinquent 1 month

2. P&I Adv - delinquent 2 months

3. P&I Adv - delinquent 3+ months

4. Mat. Balloon/Assumed P&I

7. Foreclosure

9. REO

5. Non Performing Mat. Balloon

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Specially Serviced Loan Detail (Part II) ~ Servicer Comments (End of Period)

Disclosure

Control #

Resolution

Strategy

Comments

Statement Date:

Other/TBD

164

Page 42 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Modified Loan Detail

Disclosure

Control #

Modification

Date

Cutoff

Maturity

Date

Modification

Description

Modified
Maturity

Date

Statement Date:

Ending

Principal

Balance

Page 43 of 47

Modified Loan Detail includes loans whose terms, fees, penalties or payments have been waived or extended.

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Realized Loss Detail

Period

Disclosure

Control #

Appraisal

Date

Appraisal

Value

Beginning

Scheduled

Balance

Gross

Proceeds

Gross Proceeds

as a % of

Sched. Balance

Aggregate

Liquidation
Expenses *

Net

Liquidation

Proceeds

Net Proceeds

as a % of

Sched. Balance

Realized

Loss

Statement Date:

Current Total

Cumulative

Page 44 of 47

* Aggregate liquidation expenses also include outstanding P&I advances and unpaid servicing fees, unpaid trustee fees, etc..

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Bond/Collateral Realized Loss Reconciliation

Statement Date:

ABN AMRO Acct: 724103.1

Prospectus

Period

Aggregate

Realized Loss

on Loans

Prior Realized

Loss Applied to

Certificates

Amounts Covered by

Overcollateralization

and other Credit

Support

Additional

(Recoveries)/

Expenses applied to

Realized Losses

Current Realized Loss

Applied to

Certificates*

Recoveries of

Realized Losses

paid as Cash

(Recoveries)/

Realized Loss

Applied to

Certificate Interest

Modification

Adjustments/Appraisal
Reduction Adjustment

Interest

(Shortages)/

Excesses applied

to Realized

Losses

Beginning

Balance of the

Loan at

Liquidation

Cumulative

*In the Initial Period the Current Realized Loss Applied to Certificates will equal Aggregate Realized Loss on Loans - B - C - D + E instead of A - C - D + E

Description of Fields

Prior Realized Loss Applied to Certificates

Reduction to Realized Loss applied to bonds (could represent OC, insurance policies, reserve accounts, etc)

Adjustments that are based on principal haircut or future interest foregone due to modification

Realized Loss Adjustments, Supplemental Recoveries or Expenses on a previously liquidated loan

Amounts classified by the Master as interest adjustments from general collections on a loan with a Realized Loss

Page 45 of 47

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

Historical Collateral Level REO Report

Property

Type

Statement Date:

State

Actual

Balance

Scheduled

Balance

Recent

Appraisal

Value

Appraisal

Reduction

Amount

Date

Liquidated

Liquidation

Proceeds

Liquidation

Expenses

Realized

Loss

Disclosure

Control #

REO

Date

City

Appraisal

Date

ABN AMRO Acct: 724103.1

Other

Revenue

Recovered

Type

(*)

Page 46 of 47

(*) Legend: (1) Paid in Full, (2) Final Recovery Made, (3) Permitted Purchase (4) Final Recovery of REO, (5) Permitted purchase of REO

Credit Suisse First Boston Mortgage Securities Corp.

Payment Date:
Prior Payment:
Next Payment:
Record Date:

15-Dec-06
15-Dec-06

17-Nov-06

18-Jan-07

30-Nov-06

Commercial Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 724103.1

Material Breaches and Material Document Defect Detail

Disclosure

Control #

Material Breach and Material Document Defect

Description

Material

Breach

Date

Statement Date:

Ending

Principal

Balance

Page 47 of 47

Material breaches of pool asset representation or warranties or transaction covenants.

Credit Suisse Commercial Mortgage Trust Series 2006-C4 10-D