Citigroup Commercial Mortgage Securities Inc.

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Reporting Package Table of Contents

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Administrator:

Laura Kocha-Chaddha 312.904.0648
laura.kocha.chaddha@abnamro.com

Analyst:

Julie Ji 714.259.6832
Julie.Ji@abnamro.com

Revised Date:

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

Statements to Certificateholders

Cash Reconciliation Summary
Shortfall Summary Report
Bond Interest Reconciliation
Bond Interest Reconciliation
Rating Information
Asset-Backed Facts ~ 15 Month Loan Status Summary
Delinquent Loan Detail
Asset-Backed Facts ~ 15 Month Loan Payoff/Loss Summary
Historical Collateral Prepayment

Page 2-4

Page 5-7
Page 8
Page 9
Page 10
Page 11-12
Page 13-15
Page 16
Page 17-19
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
Summary of Loan Maturity Extensions

Page 21-29
Page 30-37
Page 38
Page 39
Page 40
Page 41
Page 42

Page(s)

Information is available for this issue from the following sources

Issue Id:

Monthly Data File
Name:

CCMT06C4

CCMT06C4_200607_3.ZIP

Realized Loss Detail
Historical REO Report
Material Breaches Detail

Page 43
Page 44
Page 45

Parties to The Transaction

Depositor: Citigroup Commercial Mortgage Securities Inc.

Underwriter: Citigroup Global Markets Inc./Barclays Capital Inc./PNC Capital Markets LLC/Deutsche Bank Securities Inc./Banc of America Securities LLC

Master Servicer: Midland Loan Services, Inc.

Special Servicer: J.E. Robert Company, Inc.

Rating Agency: Moody's Investors Service, Inc./Fitch, Inc.

800.246.5761

LaSalle Factor Line

LaSalle Web Site

Servicer Web Site

www.midlandls.com

www.etrustee.net

Closing Date:

First Payment Date:

Rated Final Payment Date:

Determination Date:

29-Jun-2006

17-Jul-2006

17-Mar-2049

11-Jul-2006

Trust Collection Period

6/13/2006 - 7/11/2006

Page 1 of 45

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:

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

5.761953%

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Citigroup Commercial Mortgage Securities Inc.

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

113

REMIC II

Revised Date:

ABN AMRO Acct: 723837.1

1000.000000000

8.818992133

0.000000000

991.181007867

4.767137747

5.7206000000%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAA1

A-1

79,951,000.00

705,087.24

0.00

79,245,912.76

381,137.43

79,951,000.00

1000.000000000

0.000000000

1000.000000000

4.767137703

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAB9

A-2

152,713,000.00

0.00

152,713,000.00

728,003.90

152,713,000.00

1000.000000000

0.000000000

1000.000000000

4.767137679

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAC7

A-SB

135,184,000.00

0.00

135,184,000.00

644,440.74

135,184,000.00

1000.000000000

0.000000000

1000.000000000

4.767137686

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAD5

A-3

831,310,000.00

0.00

831,310,000.00

3,962,969.23

831,310,000.00

1000.000000000

0.215166499

0.000000000

999.784833501

4.767137681

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAE3

A-1A

385,317,000.00

82,907.31

0.00

385,234,092.69

1,836,859.19

385,317,000.00

1000.000000000

0.000000000

1000.000000000

4.767137701

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAF0

A-M

226,353,000.00

0.00

226,353,000.00

1,079,055.92

226,353,000.00

1000.000000000

0.000000000

1000.000000000

4.767137660

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAG8

A-J

164,107,000.00

0.00

164,107,000.00

782,320.66

164,107,000.00

1000.000000000

0.000000000

1000.000000000

4.767137780

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAH6

50,929,000.00

0.00

50,929,000.00

242,785.56

50,929,000.00

1000.000000000

0.000000000

1000.000000000

4.767137640

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAJ2

25,465,000.00

0.00

25,465,000.00

121,395.16

25,465,000.00

1000.000000000

0.000000000

1000.000000000

4.767137579

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAK9

31,124,000.00

0.00

31,124,000.00

148,372.39

31,124,000.00

1000.000000000

0.000000000

1000.000000000

4.767137619

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAM5/U12650AB0

22,635,000.00

0.00

22,635,000.00

107,904.16

22,635,000.00

1000.000000000

0.000000000

1000.000000000

4.767137556

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAN3/U12650AC8

28,294,000.00

0.00

28,294,000.00

134,881.39

28,294,000.00

1000.000000000

0.000000000

1000.000000000

4.767137556

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAP8/U12650AD6

28,294,000.00

0.00

28,294,000.00

134,881.39

28,294,000.00

1000.000000000

0.000000000

1000.000000000

4.767137640

5.9111521340%

0.00

0.000000000

5.7205652286%

0.000000000

17309DAQ6/U12650AE4

25,465,000.00

0.00

25,465,000.00

121,395.16

25,465,000.00

1000.000000000

0.000000000

1000.000000000

4.702500442

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAR4/U12650AF1

11,318,000.00

0.00

11,318,000.00

53,222.90

11,318,000.00

1000.000000000

0.000000000

1000.000000000

4.702500000

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAS2/U12650AG9

8,488,000.00

0.00

8,488,000.00

39,914.82

8,488,000.00

1000.000000000

0.000000000

1000.000000000

4.702500000

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAT0/U12650AH7

8,488,000.00

0.00

8,488,000.00

39,914.82

8,488,000.00

Page 2 of 45

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:

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

5.761953%

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Citigroup Commercial Mortgage Securities Inc.

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

113

REMIC II

Revised Date:

ABN AMRO Acct: 723837.1

1000.000000000

0.000000000

1000.000000000

4.702500442

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAU7/U12650AJ3

5,659,000.00

0.00

5,659,000.00

26,611.45

5,659,000.00

1000.000000000

0.000000000

1000.000000000

4.702500442

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAV5/U12650AK0

5,659,000.00

0.00

5,659,000.00

26,611.45

5,659,000.00

1000.000000000

0.000000000

1000.000000000

4.702500442

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAW3/U12650AL8

5,659,000.00

0.00

5,659,000.00

26,611.45

5,659,000.00

1000.000000000

0.000000000

1000.000000000

4.702500042

5.6430000000%

0.00

0.000000000

5.6430000000%

0.000000000

17309DAX1/U12650AM6

P (*)

31,124,038.00

0.00

31,124,038.00

146,360.79

31,124,038.00

1000.000000000

0.000000000

999.651874529

0.002181542

0.00

0.000000000

0.0026178503%

0.000000000

17309DAL7/U12650AA2

2,263,536,038.00

0.00

2,262,748,043.45

4,938.00

2,263,536,038.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS40911

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS40929

R-I

0.00

Total P&I Payment

0.00

2,263,536,038.00

11,578,582.51

Total

2,262,748,043.45

787,994.55

0.00

10,790,587.96

Page 3 of 45

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:

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

5.761953%

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Citigroup Commercial Mortgage Securities Inc.

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

113

Grantor Trust

Revised Date:

ABN AMRO Acct: 723837.1

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABS4104

0.00

Total P&I Payment

0.00

Total

0.00

Page 4 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Revised Date:

Cash Reconciliation Summary

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

10,868,657.46

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

10,868,657.46

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

0.00

10,792,285.61

)

(1,697.65

0.00
0.00
0.00

)

(1,697.65

787,994.54

0.00

787,994.54

0.01
0.00
0.00
0.00
0.00
0.01

787,994.55

11,580,280.16

2,263,536,038.04

166

787,994.54

)

(0.03

0.00
0.00

0.00

2,262,748,043.53

166

0.00

76,371.85

0.00
0.00
0.00

76,371.85

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(76,371.85

Less Other Interest Not Advanced

0.00

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Cumulative Prepayment Consideration Received

Prepayment Premiums
Yield Maintenance
Other Interest

10,790,587.96

11,578,582.51

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

Borrower-paid Servicing Fee

Borrower-paid Trustee Fee

0.00
0.00

0.00
0.00
0.00

Page 5 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Revised Date:

Cash Reconciliation Summary Loan Group No. 1

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

9,096,797.59

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

9,096,797.59

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

0.00

9,035,347.64

)

(1,408.66

0.00
0.00
0.00

)

(1,408.66

705,087.21

0.00

705,087.21

0.03
0.00
0.00
0.00
0.00
0.03

705,087.24

9,740,434.88

1,878,218,471.16

134

705,087.21

)

(0.01

0.00
0.00

0.00

1,877,513,383.96

134

0.00

61,449.95

0.00
0.00
0.00

61,449.95

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(61,449.95

Less Other Interest Not Advanced

0.00

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Cumulative Prepayment Consideration Received

Prepayment Premiums
Yield Maintenance
Other Interest

9,033,938.97

9,739,026.21

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

Borrower-paid Servicing Fee

Borrower-paid Trustee Fee

0.00
0.00

0.00
0.00
0.00

Page 6 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Revised Date:

Cash Reconciliation Summary Loan Group No. 2

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

1,771,859.87

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

1,771,859.87

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

0.00

1,756,937.98

)

(288.99

0.00
0.00
0.00

)

(288.99

82,907.33

0.00

82,907.33

)

(0.02

0.00
0.00
0.00
0.00

)

(0.02

82,907.31

1,839,845.28

385,317,566.88

82,907.33

)

(0.02

0.00
0.00

0.00

385,234,659.57

0.00

14,921.90

0.00
0.00
0.00

14,921.90

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(14,921.90

Less Other Interest Not Advanced

0.00

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Cumulative Prepayment Consideration Received

Prepayment Premiums
Yield Maintenance
Other Interest

1,756,648.99

1,839,556.30

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

Borrower-paid Servicing Fee

Borrower-paid Trustee Fee

0.00
0.00

0.00
0.00
0.00

Page 7 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Interest Adjustments Summary

Revised 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

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

0.00

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

0.00

0.00

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 8 of 45

Citigroup Commercial Mortgage Securities Inc.

Class

Accrued

Certificate

Interest

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Bond Interest Reconciliation Detail

Total

Interest

Deductions

Accrual

Total

Interest

Additions

Revised 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

5.720565%

79,951,000.00

381,137.43

0.00

381,137.43

0.00

A-1

0.00

30.00%

30.01%

381,137.43

0.00

30/360

5.720565%

152,713,000.00

728,003.90

0.00

728,003.90

0.00

A-2

0.00

30.00%

30.01%

728,003.90

0.00

30/360

5.720565%

135,184,000.00

644,440.74

0.00

644,440.74

0.00

A-SB

0.00

30.00%

30.01%

644,440.74

0.00

30/360

5.720565%

831,310,000.00

3,962,969.23

0.00

3,962,969.23

0.00

A-3

0.00

30.00%

30.01%

3,962,969.23

0.00

30/360

5.720565%

385,317,000.00

1,836,859.19

0.00

1,836,859.19

0.00

A-1A

0.00

30.00%

30.01%

1,836,859.19

0.00

30/360

5.720565%

226,353,000.00

1,079,055.92

0.00

1,079,055.92

0.00

A-M

0.00

20.00%

20.01%

1,079,055.92

0.00

30/360

5.720565%

164,107,000.00

782,320.66

0.00

782,320.66

0.00

A-J

0.00

12.75%

782,320.66

0.00

30/360

5.720565%

50,929,000.00

242,785.56

0.00

242,785.56

0.00

10.50%

242,785.56

0.00

30/360

5.720565%

25,465,000.00

121,395.16

0.00

121,395.16

0.00

9.38%

121,395.16

0.00

30/360

5.720565%

31,124,000.00

148,372.39

0.00

148,372.39

0.00

8.00%

148,372.39

0.00

30/360

5.720565%

22,635,000.00

107,904.16

0.00

107,904.16

0.00

7.00%

107,904.16

0.00

30/360

5.720565%

28,294,000.00

134,881.39

0.00

134,881.39

0.00

5.75%

134,881.39

0.00

30/360

5.720565%

28,294,000.00

134,881.39

0.00

134,881.39

0.00

4.50%

134,881.39

0.00

30/360

5.720565%

25,465,000.00

121,395.16

0.00

121,395.16

0.00

3.38%

121,395.16

0.00

30/360

5.643000%

11,318,000.00

53,222.90

0.00

53,222.90

0.00

2.88%

53,222.90

0.00

30/360

5.643000%

8,488,000.00

39,914.82

0.00

39,914.82

0.00

2.50%

39,914.82

0.00

30/360

5.643000%

8,488,000.00

39,914.82

0.00

39,914.82

0.00

2.13%

39,914.82

0.00

30/360

5.643000%

5,659,000.00

26,611.45

0.00

26,611.45

0.00

1.88%

26,611.45

0.00

30/360

5.643000%

5,659,000.00

26,611.45

0.00

26,611.45

0.00

1.63%

26,611.45

0.00

30/360

5.643000%

5,659,000.00

26,611.45

0.00

26,611.45

0.00

1.38%

26,611.45

0.00

30/360

5.643000%

31,124,038.00

146,360.79

0.00

146,360.79

0.00

0.00%

146,360.79

0.00

30/360

0.002618%

2,263,536,038.00

4,938.00

0.00

4,938.00

0.00

4,938.00

0.00

0.000000%

0.00

10,790,587.96

0.00

10,790,587.96

0.00

Page 9 of 45

(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).

Citigroup Commercial Mortgage Securities Inc.

Class

Payment Date:

Prior Payment:
Next Payment:

Record Date:

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Bond Interest Reconciliation Detail

Deductions

Allocable

PPIS

Deferred &

Accretion

Interest

Additions

Yield

Maintenance

Interest Accrual
on Prior Shortfall

Interest

Loss Expense

Revised Date:

Prior Interest

Shortfall Due

Other

Interest

Proceeds (1)

Prepayment

Premiums

Prior

Interest

Due Date

Current
Interest

Due Date

Interest

Payment

Amount

Distributable

Certificate

Interest

0.00

381,137.43

0.00

1-Jun-2006

1-Jul-2006

0.00

A-1

0.00

728,003.90

0.00

1-Jun-2006

1-Jul-2006

0.00

A-2

0.00

644,440.74

0.00

1-Jun-2006

1-Jul-2006

0.00

A-SB

0.00

3,962,969.23

0.00

1-Jun-2006

1-Jul-2006

0.00

A-3

0.00

1,836,859.19

0.00

1-Jun-2006

1-Jul-2006

0.00

A-1A

0.00

1,079,055.92

0.00

1-Jun-2006

1-Jul-2006

0.00

A-M

0.00

782,320.66

0.00

1-Jun-2006

1-Jul-2006

0.00

A-J

0.00

242,785.56

0.00

1-Jun-2006

1-Jul-2006

0.00

121,395.16

0.00

1-Jun-2006

1-Jul-2006

0.00

148,372.39

0.00

1-Jun-2006

1-Jul-2006

0.00

107,904.16

0.00

1-Jun-2006

1-Jul-2006

0.00

134,881.39

0.00

1-Jun-2006

1-Jul-2006

0.00

134,881.39

0.00

1-Jun-2006

1-Jul-2006

0.00

121,395.16

0.00

1-Jun-2006

1-Jul-2006

0.00

53,222.90

0.00

1-Jun-2006

1-Jul-2006

0.00

39,914.82

0.00

1-Jun-2006

1-Jul-2006

0.00

39,914.82

0.00

1-Jun-2006

1-Jul-2006

0.00

26,611.45

0.00

1-Jun-2006

1-Jul-2006

0.00

26,611.45

0.00

1-Jun-2006

1-Jul-2006

0.00

26,611.45

0.00

1-Jun-2006

1-Jul-2006

0.00

146,360.79

0.00

1-Jun-2006

1-Jul-2006

0.00

4,938.00

0.00

1-Jun-2006

1-Jul-2006

0.00

1-Jun-2006

1-Jul-2006

0.00

10,790,587.96

0.00

Page 10 of 45

(1) Other Interest Proceeds are additional interest amounts specifically allocated to the bond(s) and used in determining the Bondholder's Distributable Interest.

Citigroup Commercial Mortgage Securities Inc.

Payment Date:

Prior Payment:

Next Payment:

Record Date:

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Rating Information

Class

CUSIP

Fitch

Moody's

S&P

Fitch

Moody's

S&P

Original Ratings

Rating Change/Change Date(1)

Revised Date:

A-1

17309DAA1

AAA

Aaa

A-2

17309DAB9

AAA

Aaa

A-SB

17309DAC7

AAA

Aaa

A-3

17309DAD5

AAA

Aaa

A-1A

17309DAE3

AAA

Aaa

A-M

17309DAF0

AAA

Aaa

A-J

17309DAG8

AAA

Aaa

17309DAH6

Aa2

17309DAJ2

AA-

Aa3

17309DAK9

17309DAM5

A-

17309DAN3

BBB+

Baa1

17309DAP8

BBB

Baa2

17309DAQ6

BBB-

Baa3

17309DAR4

BB+

Ba1

17309DAS2

Ba2

17309DAT0

BB-

Ba3

17309DAU7

B+

17309DAV5

17309DAW3

B-

17309DAX1

17309DAL7

AAA

Aaa

Page 11 of 45

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.

Citigroup Commercial Mortgage Securities Inc.

Payment Date:

Prior Payment:

Next Payment:

Record Date:

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Rating Information

Class

CUSIP

Fitch

Moody's

S&P

Fitch

Moody's

S&P

Original Ratings

Rating Change/Change Date(1)

Revised Date:

9ABS4104

Page 12 of 45

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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical 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)

Revised Date:

ABN AMRO Acct: 723837.1

0.00%

7/17/2006

0.00

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

Page 13 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical 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)

Revised Date:

Loan Group No. 1

ABN AMRO Acct: 723837.1

0.00%

7/17/2006

0.00

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

Page 14 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical 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)

Revised Date:

Loan Group No. 2

ABN AMRO Acct: 723837.1

0.00%

7/17/2006

0.00

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

Page 15 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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

Revised Date:

Total

Page 16 of 45

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 and Trust Advances.

7. Foreclosure

9. REO

B. Late Payment but < 1 month delinq.

5. Non Performing Matured Balloon

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical 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

Revised Date:

Amort

ABN AMRO Acct: 723837.1

Series 2006-C4

17-Jul-06

166

100.00%

2,262,748,044

99.97%

0.00%

113

355

5.76%

5.72%

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

Page 17 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical 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

Revised Date:

Loan Group No. 1

Amort

ABN AMRO Acct: 723837.1

Series 2006-C4

17-Jul-06

134

80.72%

1,877,513,384

82.95%

0.00%

113

354

5.81%

5.77%

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

Page 18 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical 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

Revised Date:

Loan Group No. 2

Amort

ABN AMRO Acct: 723837.1

Series 2006-C4

17-Jul-06

19.28%

385,234,660

17.02%

0.00%

110

358

5.52%

5.47%

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

Page 19 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Historical Collateral Level Prepayment Report

Disclosure

Control #

Payoff
Period

Initial

Balance

Type

Payoff

Amount

Penalty

Amount

Prepayment

Date

Maturity

Date

Property

Type

Geographic

Location

Revised Date:

Cumulative

Current

Page 20 of 45

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Distribution of Mortgage Interest Rates

Distribution of Principal Balances

Distribution of Remaining Term (Balloon)

Distribution of Remaining Term (Fully Amortizing)

Page 21 of 45

Current Scheduled

Balance

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

129,579,159

5.73

119

5.72

0.00

700,000 to

5,000,000

442,851,031

19.57

117

5.75

0.00

5,000,000 to 10,000,000

359,337,632

15.88

114

5.75

0.00

10,000,000 to 15,000,000

336,801,690

14.88

111

5.74

0.00

15,000,000 to 20,000,000

89,498,781

3.96

115

5.36

0.00

20,000,000 to 25,000,000

78,800,000

3.48

116

5.52

0.00

25,000,000 to 30,000,000

130,862,500

5.78

117

5.95

0.00

30,000,000 to 35,000,000

36,500,000

1.61

119

5.82

0.00

35,000,000 to 40,000,000

42,695,000

1.89

111

5.31

0.00

40,000,000 to 45,000,000

0.00

45,000,000 to 50,000,000

55,000,000

2.43

108

5.19

0.00

50,000,000 to 55,000,000

0.00

55,000,000 to 60,000,000

63,000,000

2.78

6.08

0.00

60,000,000 to 65,000,000

0.00

65,000,000 to 70,000,000

72,000,000

3.18

114

5.32

0.00

70,000,000 to 75,000,000

0.00

75,000,000 to 80,000,000

0.00

80,000,000 to 85,000,000

0.00

85,000,000 to 90,000,000

93,000,000

4.11

5.57

0.00

90,000,000 to 95,000,000

332,822,250

14.71

118

6.15

0.00

95,000,000 &

Above

199,822,250

721,000

2,262,748,044

166

100.00

Average Schedule Balance
Maximum Schedule Balance
Minimum Schedule Balance

13,631,012

Current Mortgage

Interest Rate

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

4.000%

4.250%

36,967,000

1.63

113

4.41

0.00

4.251%

4.500%

0.00

4.501%

4.750%

0.00

4.751%

5.000%

75,465,000

3.34

110

5.20

0.00

5.001%

5.250%

521,456,002

23.05

113

5.44

0.00

5.251%

5.500%

638,097,330

28.20

108

5.60

0.00

5.501%

5.750%

460,097,982

20.33

119

5.85

0.00

5.751%

6.000%

208,401,455

9.21

102

6.10

0.00

6.001%

6.250%

87,593,494

3.87

118

6.32

0.00

6.251%

6.500%

227,778,474

10.07

119

6.59

0.00

6.501%

6.750%

0.00

6.751%

7.000%

0.00

7.001%

7.250%

0.00

7.251%

7.500%

6,891,307

0.30

178

7.56

0.00

7.501%

Above

166

2,262,748,044

Minimum Mortgage Interest Rate
Maximum Mortgage Interest Rate

100.00

4.375%
7.560%

Fully Amortizing

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

100

29,066,482

1.28

113

5.91

0.00

101

125

0.00

126

150

0.00

151

Above

118

107

29,066,482

Minimum Remaining Term
Maximum Remaining Term

1.28

Balloon

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

49,183,909

2.17

5.73

0.00

184,360,000

8.15

5.76

0.00

100

145

1,969,072,833

87.02

116

5.75

0.00

101

125

0.00

126

150

24,173,512

1.07

174

5.76

0.00

151

175

6,891,307

0.30

178

7.56

0.00

176

200

0.00

201

225

0.00

226

& Above

178

161

2,233,681,561

Minimum Remaining Term
Maximum Remaining Term

98.72

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Loan Group No. 1

Distribution of Mortgage Interest Rates

Distribution of Principal Balances

Distribution of Remaining Term (Balloon)

Distribution of Remaining Term (Fully Amortizing)

Page 22 of 45

Current Scheduled

Balance

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

112,994,250

6.02

120

5.72

0.00

700,000 to

5,000,000

346,708,605

18.47

118

5.73

0.00

5,000,000 to 10,000,000

291,287,309

15.51

115

5.84

0.00

10,000,000 to 15,000,000

268,111,690

14.28

113

5.78

0.00

15,000,000 to 20,000,000

67,331,781

3.59

116

5.67

0.00

20,000,000 to 25,000,000

53,200,000

2.83

115

5.53

0.00

25,000,000 to 30,000,000

97,862,500

5.21

117

5.95

0.00

30,000,000 to 35,000,000

36,500,000

1.94

119

5.82

0.00

35,000,000 to 40,000,000

42,695,000

2.27

111

5.31

0.00

40,000,000 to 45,000,000

0.00

45,000,000 to 50,000,000

0.00

50,000,000 to 55,000,000

0.00

55,000,000 to 60,000,000

63,000,000

3.36

6.08

0.00

60,000,000 to 65,000,000

0.00

65,000,000 to 70,000,000

72,000,000

3.83

114

5.32

0.00

70,000,000 to 75,000,000

0.00

75,000,000 to 80,000,000

0.00

80,000,000 to 85,000,000

0.00

85,000,000 to 90,000,000

93,000,000

4.95

5.57

0.00

90,000,000 to 95,000,000

332,822,250

17.73

118

6.15

0.00

95,000,000 &

Above

199,822,250

721,000

1,877,513,384

134

100.00

Average Schedule Balance
Maximum Schedule Balance
Minimum Schedule Balance

14,011,294

Current Mortgage

Interest Rate

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

4.000%

4.250%

0.00

4.251%

4.500%

0.00

4.501%

4.750%

0.00

4.751%

5.000%

14,600,000

0.78

115

5.23

0.00

5.001%

5.250%

456,251,858

24.30

114

5.43

0.00

5.251%

5.500%

512,884,798

27.32

109

5.60

0.00

5.501%

5.750%

393,252,982

20.95

119

5.85

0.00

5.751%

6.000%

193,758,677

10.32

100

6.11

0.00

6.001%

6.250%

78,986,595

4.21

118

6.33

0.00

6.251%

6.500%

227,778,474

12.13

119

6.59

0.00

6.501%

6.750%

0.00

6.751%

7.000%

0.00

7.001%

7.250%

0.00

7.251%

7.500%

0.00

7.501%

Above

134

1,877,513,384

Minimum Mortgage Interest Rate
Maximum Mortgage Interest Rate

100.00

5.230%
6.650%

Fully Amortizing

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

100

29,066,482

1.55

113

5.91

0.00

101

125

0.00

126

150

0.00

151

Above

118

107

29,066,482

Minimum Remaining Term
Maximum Remaining Term

1.55

Balloon

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

19,073,059

1.02

5.97

0.00

170,360,000

9.07

5.78

0.00

100

118

1,634,840,330

87.07

116

5.81

0.00

101

125

0.00

126

150

24,173,512

1.29

174

5.76

0.00

151

175

0.00

176

200

0.00

201

225

0.00

226

& Above

175

129

1,848,446,901

Minimum Remaining Term
Maximum Remaining Term

98.45

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Loan Group No. 2

Distribution of Mortgage Interest Rates

Distribution of Principal Balances

Distribution of Remaining Term (Balloon)

Distribution of Remaining Term (Fully Amortizing)

Page 23 of 45

Current Scheduled

Balance

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

16,584,909

4.31

116

5.75

0.00

700,000 to

5,000,000

96,142,427

24.96

112

5.83

0.00

5,000,000 to 10,000,000

68,050,324

17.66

109

5.38

0.00

10,000,000 to 15,000,000

68,690,000

17.83

102

5.58

0.00

15,000,000 to 20,000,000

22,167,000

5.75

113

4.44

0.00

20,000,000 to 25,000,000

25,600,000

6.65

117

5.49

0.00

25,000,000 to 30,000,000

33,000,000

8.57

117

5.94

0.00

30,000,000 to 35,000,000

0.00

35,000,000 to 40,000,000

0.00

40,000,000 to 45,000,000

0.00

45,000,000 to 50,000,000

55,000,000

14.28

108

5.19

0.00

50,000,000 to 55,000,000

0.00

55,000,000 to 60,000,000

0.00

60,000,000 to 65,000,000

0.00

65,000,000 to 70,000,000

0.00

70,000,000 to 75,000,000

0.00

75,000,000 to 80,000,000

0.00

80,000,000 to 85,000,000

0.00

85,000,000 to 90,000,000

0.00

90,000,000 to 95,000,000

0.00

95,000,000 &

Above

55,000,000

864,210

385,234,660

100.00

Average Schedule Balance
Maximum Schedule Balance
Minimum Schedule Balance

12,038,583

Current Mortgage

Interest Rate

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

4.000%

4.250%

36,967,000

9.60

113

4.41

0.00

4.251%

4.500%

0.00

4.501%

4.750%

0.00

4.751%

5.000%

60,865,000

15.80

108

5.20

0.00

5.001%

5.250%

65,204,144

16.93

101

5.47

0.00

5.251%

5.500%

125,212,531

32.50

105

5.60

0.00

5.501%

5.750%

66,845,000

17.35

117

5.87

0.00

5.751%

6.000%

14,642,778

3.80

118

6.08

0.00

6.001%

6.250%

8,606,899

2.23

119

6.30

0.00

6.251%

6.500%

0.00

6.501%

6.750%

0.00

6.751%

7.000%

0.00

7.001%

7.250%

0.00

7.251%

7.500%

6,891,307

1.79

178

7.56

0.00

7.501%

Above

385,234,660

Minimum Mortgage Interest Rate
Maximum Mortgage Interest Rate

100.00

4.375%
7.560%

Fully Amortizing

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

100

0.00

101

125

0.00

126

150

0.00

151

Above

0.00

Balloon

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

30,110,850

7.82

5.57

0.00

14,000,000

3.63

5.52

0.00

100

334,232,502

86.76

115

5.47

0.00

101

125

0.00

126

150

0.00

151

175

6,891,307

1.79

178

7.56

0.00

176

200

0.00

201

225

0.00

226

& Above

178

385,234,660

Minimum Remaining Term
Maximum Remaining Term

100.00

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Geographic Distribution

Distribution of DSCR (PFY)

Distribution of DSCR (Cutoff)

Page 24 of 45

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.000 1.100

0.00

1.101 1.200

0.00

1.201 1.300

0.00

1.301 1.400

0.00

1.401 1.500

0.00

1.501 1.600

0.00

1.601 1.700

0.00

1.701 1.800

0.00

1.801 1.900

0.00

1.901 2.000

0.00

2.001 2.100

0.00

2.101 2.200

0.00

2.201 2.300

0.00

2.301 2.400

0.00

2.401 & Above

166

2,262,748,044

100.00

113

5.76

0.00

Unknown

0.000
0.000

166

2,262,748,044

100.00

Minimum DSCR

Maximum DSCR

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.000 1.100

752,724,521

33.27

117

5.73

0.00

1.101 1.200

766,896,953

33.89

111

5.59

0.00

1.201 1.300

164,653,716

7.28

117

5.63

0.00

1.301 1.400

148,263,813

6.55

104

5.99

0.00

1.401 1.500

243,896,472

10.78

118

6.43

0.00

1.501 1.600

30,365,098

1.34

5.46

0.00

1.601 1.700

63,000,000

2.78

6.08

0.00

1.701 1.800

5,500,000

0.24

119

5.81

0.00

1.801 1.900

2,597,471

0.11

119

6.12

0.00

1.901 2.000

0.00

2.001 2.100

0.00

2.101 2.200

72,000,000

3.18

114

5.32

0.00

2.201 2.300

0.00

2.301 2.400

12,850,000

0.57

116

5.46

0.00

2.401 & Above

2.520

1.150

166

2,262,748,044 100.00

Minimum DSCR

Maximum DSCR

Geographic

Location

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

California

351,711,016

15.54

115

5.59

0.00

Multiple States

334,822,250

14.80

111

6.22

0.00

Virginia

165,785,868

7.33

5.65

0.00

Pennsylvania

154,531,031

6.83

118

5.99

0.00

Florida

153,134,095

6.77

114

5.66

0.00

Washington

97,517,060

4.31

116

5.71

0.00

Georgia

92,090,005

4.07

117

5.88

0.00

Massachusetts

74,579,370

3.30

115

5.60

0.00

Tennessee

72,570,479

3.21

111

5.70

0.00

Michigan

64,766,145

2.86

118

5.72

0.00

New Jersey

62,300,382

2.75

116

5.69

0.00

Arizona

53,894,111

2.38

5.66

0.00

Wisconsin

52,835,061

2.33

116

5.57

0.00

Oklahoma

52,342,689

2.31

115

5.57

0.00

South Carolina

51,783,571

2.29

118

5.85

0.00

Texas

49,669,475

2.20

128

5.90

0.00

North Carolina

45,069,648

1.99

115

5.58

0.00

Nevada

38,790,000

1.71

128

5.70

0.00

Maryland

38,350,000

1.69

116

5.64

0.00

Connecticut

35,602,000

1.57

125

5.77

0.00

Louisiana

32,558,738

1.44

115

5.59

0.00

New York

32,230,000

1.42

115

5.88

0.00

Ohio

27,546,275

1.22

116

4.77

0.00

Illinois

26,960,850

1.19

5.90

0.00

Mississippi

21,805,280

0.96

115

5.72

0.00

Kansas

14,800,000

0.65

114

4.38

0.00

Kentucky

14,060,060

0.62

115

5.80

0.00

Missouri

10,722,692

0.47

118

5.89

0.00

Colorado

9,738,535

0.43

152

5.69

0.00

Delaware

8,800,000

0.39

119

6.19

0.00

New Hampshire

6,126,357

0.27

117

5.68

0.00

Oregon

5,865,000

0.26

113

5.25

0.00

Indiana

5,500,000

0.24

116

5.54

0.00

Minnesota

3,890,000

0.17

114

5.63

0.00

100.00

2,262,748,044

166

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Loan Group No. 1

Geographic Distribution

Distribution of DSCR (PFY)

Distribution of DSCR (Cutoff)

Page 25 of 45

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.000 1.100

0.00

1.101 1.200

0.00

1.201 1.300

0.00

1.301 1.400

0.00

1.401 1.500

0.00

1.501 1.600

0.00

1.601 1.700

0.00

1.701 1.800

0.00

1.801 1.900

0.00

1.901 2.000

0.00

2.001 2.100

0.00

2.101 2.200

0.00

2.201 2.300

0.00

2.301 2.400

0.00

2.401 & Above

134

1,877,513,384

100.00

113

5.81

0.00

Unknown

0.000
0.000

134

1,877,513,384

100.00

Minimum DSCR

Maximum DSCR

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.000 1.100

660,647,039

35.19

117

5.71

0.00

1.101 1.200

552,939,749

29.45

111

5.65

0.00

1.201 1.300

128,895,357

6.87

117

5.78

0.00

1.301 1.400

128,398,813

6.84

106

6.08

0.00

1.401 1.500

243,896,472

12.99

118

6.43

0.00

1.501 1.600

9,385,954

0.50

112

5.44

0.00

1.601 1.700

63,000,000

3.36

6.08

0.00

1.701 1.800

5,500,000

0.29

119

5.81

0.00

1.801 1.900

0.00

1.901 2.000

0.00

2.001 2.100

0.00

2.101 2.200

72,000,000

3.83

114

5.32

0.00

2.201 2.300

0.00

2.301 2.400

12,850,000

0.68

116

5.46

0.00

2.401 & Above

2.520

1.150

134

1,877,513,384 100.00

Minimum DSCR

Maximum DSCR

Geographic

Location

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Multiple States

334,822,250

17.83

111

6.22

0.00

California

291,211,016

15.51

117

5.67

0.00

Florida

153,134,095

8.16

114

5.66

0.00

Virginia

152,384,644

8.12

5.64

0.00

Pennsylvania

121,531,031

6.47

118

6.00

0.00

Washington

82,792,060

4.41

116

5.72

0.00

Massachusetts

74,579,370

3.97

115

5.60

0.00

Georgia

66,490,005

3.54

117

6.03

0.00

Tennessee

59,070,479

3.15

109

5.67

0.00

Michigan

49,576,145

2.64

119

5.70

0.00

South Carolina

44,508,571

2.37

119

5.92

0.00

New Jersey

42,300,382

2.25

117

5.77

0.00

Texas

40,180,697

2.14

120

5.61

0.00

Nevada

38,790,000

2.07

128

5.70

0.00

Maryland

38,350,000

2.04

116

5.64

0.00

Oklahoma

38,000,000

2.02

114

5.44

0.00

Connecticut

35,602,000

1.90

125

5.77

0.00

Louisiana

32,558,738

1.73

115

5.59

0.00

New York

32,230,000

1.72

115

5.88

0.00

Wisconsin

29,242,557

1.56

115

5.52

0.00

North Carolina

27,569,648

1.47

114

5.60

0.00

Arizona

16,394,111

0.87

118

5.97

0.00

Kentucky

14,060,060

0.75

115

5.80

0.00

Illinois

12,850,000

0.68

118

6.15

0.00

Missouri

10,722,692

0.57

118

5.89

0.00

Colorado

9,738,535

0.52

152

5.69

0.00

Mississippi

9,513,315

0.51

114

5.69

0.00

Delaware

8,800,000

0.47

119

6.19

0.00

Indiana

5,500,000

0.29

116

5.54

0.00

Minnesota

3,890,000

0.21

114

5.63

0.00

Ohio

1,120,980

0.06

175

5.69

0.00

100.00

1,877,513,384

134

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Loan Group No. 2

Geographic Distribution

Distribution of DSCR (PFY)

Distribution of DSCR (Cutoff)

Page 26 of 45

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.000 1.100

0.00

1.101 1.200

0.00

1.201 1.300

0.00

1.301 1.400

0.00

1.401 1.500

0.00

1.501 1.600

0.00

1.601 1.700

0.00

1.701 1.800

0.00

1.801 1.900

0.00

1.901 2.000

0.00

2.001 2.100

0.00

2.101 2.200

0.00

2.201 2.300

0.00

2.301 2.400

0.00

2.401 & Above

385,234,660

100.00

110

5.52

0.00

Unknown

0.000
0.000

385,234,660

100.00

Minimum DSCR

Maximum DSCR

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

1.000 1.100

92,077,482

23.90

121

5.88

0.00

1.101 1.200

213,957,204

55.54

110

5.44

0.00

1.201 1.300

35,758,359

9.28

116

5.09

0.00

1.301 1.400

19,865,000

5.16

5.44

0.00

1.401 1.500

0.00

1.501 1.600

20,979,144

5.45

5.47

0.00

1.601 1.700

0.00

1.701 1.800

0.00

1.801 1.900

2,597,471

0.67

119

6.12

0.00

1.901 2.000

0.00

2.001 2.100

0.00

2.101 2.200

0.00

2.201 2.300

0.00

2.301 2.400

0.00

2.401 & Above

1.940

1.150

385,234,660 100.00

Minimum DSCR

Maximum DSCR

Geographic

Location

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

California

60,500,000

15.70

109

5.23

0.00

Arizona

37,500,000

9.73

5.52

0.00

Pennsylvania

33,000,000

8.57

117

5.94

0.00

Ohio

26,425,295

6.86

114

4.73

0.00

Georgia

25,600,000

6.65

117

5.49

0.00

Wisconsin

23,592,503

6.12

117

5.63

0.00

New Jersey

20,000,000

5.19

115

5.53

0.00

North Carolina

17,500,000

4.54

116

5.55

0.00

Michigan

15,190,000

3.94

117

5.76

0.00

Kansas

14,800,000

3.84

114

4.38

0.00

Washington

14,725,000

3.82

116

5.67

0.00

Oklahoma

14,342,689

3.72

117

5.90

0.00

Illinois

14,110,850

3.66

5.67

0.00

Tennessee

13,500,000

3.50

118

5.80

0.00

Virginia

13,401,223

3.48

117

5.81

0.00

Mississippi

12,291,965

3.19

116

5.74

0.00

Texas

9,488,778

2.46

162

7.17

0.00

South Carolina

7,275,000

1.89

114

5.46

0.00

New Hampshire

6,126,357

1.59

117

5.68

0.00

Oregon

5,865,000

1.52

113

5.25

0.00

100.00

385,234,660

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Distribution of Loan Seasoning

Distribution of Property Types

Distribution of Year Loans Maturing

Distribution of Amortization Type

Page 27 of 45

Property Types

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Office

734,855,409

32.48

111

5.61

0.00

Retail

491,787,123

21.73

119

5.76

0.00

Multifamily

385,234,660

17.03

110

5.52

0.00

Other

256,911,314

11.35

104

6.02

0.00

Various

199,822,250

8.83

119

6.59

0.00

Industrial

134,121,861

5.93

116

5.63

0.00

Mixed Use

54,015,427

2.39

109

5.75

0.00

Manufactured Housing

6,000,000

0.27

116

5.36

0.00

2,262,748,044

166

100.00

Amortization Type

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Amortizing Balloon

686,578,061

30.34

116

6.10

0.00

ARD

29,066,482

1.28

113

5.91

0.00

IO Maturity Balloon

236,650,000

10.46

5.50

0.00

IO/Amortizing/Balloon

1,310,453,500

57.91

115

5.63

0.00

2,262,748,044

166

100.00

Number of Months

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

166

2,262,748,044

100.00

113

0.00

5.76

0.00

108

0.00

109

120

0.00

121

166

2,262,748,044

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

45,646,718

2.02

5.76

0.00

2011

3,537,191

0.16

5.39

0.00

2012

184,360,000

8.15

5.76

0.00

2013

0.00

2014

175,067,762

7.74

111

5.25

0.00

2015

140

1,823,071,553

80.57

117

5.81

0.00

2016

31,064,819

1.37

175

6.16

0.00

2017 & Greater

100.00

2,262,748,044

166

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Loan Group No. 1

Distribution of Loan Seasoning

Distribution of Property Types

Distribution of Year Loans Maturing

Distribution of Amortization Type

Page 28 of 45

Property Types

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Office

734,855,409

39.14

111

5.61

0.00

Retail

491,787,123

26.19

119

5.76

0.00

Other

256,911,314

13.68

104

6.02

0.00

Various

199,822,250

10.64

119

6.59

0.00

Industrial

134,121,861

7.14

116

5.63

0.00

Mixed Use

54,015,427

2.88

109

5.75

0.00

Manufactured Housing

6,000,000

0.32

116

5.36

0.00

1,877,513,384

134

100.00

Amortization Type

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Amortizing Balloon

605,470,401

32.25

116

6.12

0.00

ARD

29,066,482

1.55

113

5.91

0.00

IO Maturity Balloon

206,650,000

11.01

5.49

0.00

IO/Amortizing/Balloon

1,036,326,500

55.20

115

5.69

0.00

1,877,513,384

134

100.00

Number of Months

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

134

1,877,513,384

100.00

113

0.00

5.81

0.00

108

0.00

109

120

0.00

121

134

1,877,513,384

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

15,535,868

0.83

6.11

0.00

2011

3,537,191

0.19

5.39

0.00

2012

170,360,000

9.07

5.78

0.00

2013

0.00

2014

92,035,762

4.90

111

5.48

0.00

2015

116

1,571,871,051

83.72

117

5.83

0.00

2016

24,173,512

1.29

174

5.76

0.00

2017 & Greater

100.00

1,877,513,384

134

Citigroup Commercial Mortgage Securities Inc.

Mortgage Loan Characteristics

ABN AMRO Acct: 723837.1

Series 2006-C4

Commerical Mortgage Pass-Through Certificates

30-Jun-06

17-Aug-06

N/A

17-Jul-06

31-Jul-06

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Revised Date:

Loan Group No. 2

Distribution of Loan Seasoning

Distribution of Property Types

Distribution of Year Loans Maturing

Distribution of Amortization Type

Page 29 of 45

Property Types

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Multifamily

385,234,660

100.00

110

5.52

0.00

385,234,660

100.00

Amortization Type

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Amortizing Balloon

81,107,660

21.05

111

5.96

0.00

IO Maturity Balloon

30,000,000

7.79

5.50

0.00

IO/Amortizing/Balloon

274,127,000

71.16

114

5.39

0.00

385,234,660

100.00

Number of Months

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

385,234,660

100.00

110

0.00

5.52

0.00

108

0.00

109

120

0.00

121

385,234,660

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

30,110,850

7.82

5.57

0.00

2011

0.00

2012

14,000,000

3.63

5.52

0.00

2013

0.00

2014

83,032,000

21.55

110

4.99

0.00

2015

251,200,502

65.21

116

5.63

0.00

2016

6,891,307

1.79

178

7.56

0.00

2017 & Greater

100.00

385,234,660

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

6.59%

5-Jun-16

CCMT6C4A

Various

0.00

199,822,250

1,275,667

5.50%

11-Apr-16

CCMT6C4A

Office

0.00

133,000,000

609,583

5.57%

9-Jan-13

CCMT6C4A

Office

0.00

93,000,000

431,830

5.32%

9-Jan-16

CCMT6C4A

Office

0.00

72,000,000

319,350

6.08%

1-Mar-13

CCMT6C4A

Other

0.00

63,000,000

319,200

5.19%

1-Jul-15

CCMT6C4B

Multifamily

0.00

55,000,000

237,875

5.31%

11-Oct-15

CCMT6C4A

Office

0.00

42,695,000

188,925

5.88%

11-Jun-16

CCMT6C4A

Other

0.00

19,733,452

125,884

5.88%

11-Jun-16

CCMT6C4A

Other

0.00

9,473,555

60,434

5.88%

11-Jun-16

CCMT6C4A

Other

0.00

4,663,136

29,747

5.88%

11-Jun-16

CCMT6C4A

Other

0.00

4,343,606

27,709

5.44%

11-Jan-16

CCMT6C4A

Industrial

0.00

9,615,000

43,588

5.44%

11-Jan-16

CCMT6C4A

Industrial

0.00

7,623,000

34,558

5.44%

11-Jan-16

CCMT6C4A

Office

0.00

6,763,000

30,659

5.44%

11-Jan-16

CCMT6C4A

Industrial

0.00

6,340,000

28,741

5.44%

11-Jan-16

CCMT6C4A

Industrial

0.00

4,131,000

18,727

5.44%

11-Jan-16

CCMT6C4A

Industrial

0.00

1,510,000

6,845

5.44%

11-Jan-16

CCMT6C4A

Office

0.00

1,297,000

5,880

5.44%

11-Jan-16

CCMT6C4A

Industrial

0.00

721,000

3,269

5.82%

1-Jun-16

CCMT6C4A

Retail

0.00

36,500,000

177,025

5.92%

1-Jun-16

CCMT6C4A

Office

0.00

34,800,000

171,680

5.94%

11-Apr-16

CCMT6C4B

Multifamily

0.00

33,000,000

163,350

6.41%

11-May-16

CCMT6C4A

Retail

0.00

32,812,500

175,273

Page 30 of 45

* 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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

5.49%

11-Feb-16

CCMT6C4A

Office

0.00

30,250,000

138,268

5.47%

11-Feb-16

CCMT6C4A

Retail

0.00

26,700,000

121,708

5.60%

11-Mar-16

CCMT6C4A

Industrial

0.00

26,500,000

123,667

5.49%

11-Apr-16

CCMT6C4B

Multifamily

0.00

25,600,000

117,120

5.78%

11-Apr-16

CCMT6C4A

Retail

0.00

22,931,781

134,713

5.45%

11-Jan-16

CCMT6C4A

Retail

0.00

22,500,000

102,188

4.44%

11-Dec-15

CCMT6C4B

Multifamily

0.00

22,167,000

81,926

5.78%

11-May-16

CCMT6C4A

Retail

0.00

21,900,000

105,485

5.53%

11-Feb-16

CCMT6C4B

Multifamily

0.00

20,000,000

92,167

5.64%

11-Mar-16

CCMT6C4A

Office

0.00

19,900,000

93,530

5.58%

11-Mar-16

CCMT6C4A

Retail

0.00

19,900,000

92,535

5.65%

11-Jan-16

CCMT6C4A

Office

0.00

19,873,943

115,447

5.58%

11-Mar-16

CCMT6C4A

Retail

0.00

19,815,000

92,140

6.00%

1-Jun-16

CCMT6C4A

Industrial

0.00

19,471,861

125,639

6.05%

11-May-16

CCMT6C4A

Mixed Use

0.00

18,800,000

94,705

5.55%

11-Mar-16

CCMT6C4B

Multifamily

0.00

17,500,000

80,938

5.68%

11-Apr-16

CCMT6C4A

Office

0.00

17,480,000

82,739

5.66%

11-Apr-16

CCMT6C4A

Office

0.00

17,120,000

80,749

6.03%

11-Dec-15

CCMT6C4A

Other

0.00

16,634,222

108,551

5.77%

11-Apr-16

CCMT6C4A

Retail

0.00

16,250,000

78,068

5.77%

11-Mar-16

CCMT6C4A

Industrial

0.00

16,200,000

77,895

5.49%

11-Feb-11

CCMT6C4B

Multifamily

0.00

16,000,000

73,200

5.77%

11-Jan-16

CCMT6C4A

Other

0.00

15,857,343

100,860

Page 31 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

6.11%

11-Apr-11

CCMT6C4A

Other

0.00

15,535,868

101,515

5.56%

11-Mar-16

CCMT6C4A

Office

0.00

15,540,000

72,002

5.76%

11-Apr-16

CCMT6C4B

Multifamily

0.00

15,190,000

72,912

5.50%

11-Dec-15

CCMT6C4A

Other

0.00

14,888,011

85,121

4.38%

11-Jan-16

CCMT6C4B

Multifamily

0.00

14,800,000

53,958

5.67%

11-Mar-16

CCMT6C4B

Multifamily

0.00

8,879,000

41,916

5.67%

11-Mar-16

CCMT6C4B

Multifamily

0.00

5,846,000

27,598

5.23%

11-Feb-16

CCMT6C4A

Retail

0.00

14,600,000

63,632

5.58%

11-Jan-16

CCMT6C4A

Office

0.00

14,500,000

67,425

5.74%

1-Mar-16

CCMT6C4A

Office

0.00

14,500,000

69,358

5.80%

11-May-16

CCMT6C4A

Retail

0.00

14,472,253

85,033

5.96%

1-Jun-16

CCMT6C4A

Office

0.00

14,460,479

86,413

5.78%

11-Nov-13

CCMT6C4A

Mixed Use

0.00

14,360,000

69,155

5.67%

11-Jan-11

CCMT6C4B

Multifamily

0.00

7,055,425

41,074

5.67%

11-Jan-11

CCMT6C4B

Multifamily

0.00

7,055,425

41,074

5.52%

11-Feb-13

CCMT6C4B

Multifamily

0.00

14,000,000

64,342

5.80%

1-May-16

CCMT6C4B

Multifamily

0.00

13,500,000

65,250

5.60%

11-Apr-16

CCMT6C4B

Multifamily

0.00

13,458,359

77,458

6.26%

11-Apr-16

CCMT6C4A

Other

0.00

13,244,393

81,854

5.94%

1-May-16

CCMT6C4A

Office

0.00

13,200,000

65,340

5.90%

1-May-16

CCMT6C4A

Office

0.00

13,000,000

63,917

6.10%

11-May-16

CCMT6C4A

Retail

0.00

13,000,000

66,083

6.15%

11-May-16

CCMT6C4A

Retail

0.00

12,850,000

65,899

Page 32 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

5.74%

11-Mar-16

CCMT6C4B

Multifamily

0.00

12,291,965

71,935

5.54%

11-Jan-16

CCMT6C4A

Office

0.00

12,300,000

56,785

6.03%

11-May-16

CCMT6C4A

Retail

0.00

12,000,000

60,300

5.87%

11-Mar-16

CCMT6C4A

Office

0.00

11,705,499

69,431

6.26%

11-Apr-16

CCMT6C4A

Other

0.00

11,668,629

72,115

6.26%

11-Apr-16

CCMT6C4A

Other

0.00

11,578,871

71,560

6.24%

11-Apr-16

CCMT6C4A

Office

0.00

11,400,000

59,280

5.67%

11-Jan-16

CCMT6C4A

Retail

0.00

11,150,000

52,665

5.50%

11-Feb-16

CCMT6C4A

Retail

0.00

11,004,000

50,435

5.70%

11-Feb-16

CCMT6C4A

Retail

0.00

10,941,435

63,844

5.53%

11-Apr-16

CCMT6C4A

Industrial

0.00

10,405,000

47,976

5.89%

11-Apr-16

CCMT6C4A

Retail

0.00

10,058,738

59,771

5.69%

11-Jan-16

CCMT6C4A

Retail

0.00

9,513,315

60,047

5.78%

11-Jan-16

CCMT6C4A

Other

0.00

9,415,417

59,937

5.64%

11-Jan-16

CCMT6C4A

Industrial

0.00

9,300,000

43,710

5.89%

1-Jun-16

CCMT6C4A

Office

0.00

9,200,000

45,157

5.52%

11-Jan-16

CCMT6C4A

Industrial

0.00

9,100,000

41,822

6.61%

1-May-16

CCMT6C4A

Office

0.00

8,985,690

57,539

6.19%

1-Jun-16

CCMT6C4A

Retail

0.00

8,800,000

45,393

5.55%

11-Jan-16

CCMT6C4A

Office

0.00

8,800,000

40,700

6.02%

1-May-16

CCMT6C4B

Multifamily

0.00

8,651,223

52,075

5.95%

11-Apr-16

CCMT6C4A

Office

0.00

8,570,382

51,255

5.52%

11-Jan-16

CCMT6C4A

Retail

0.00

8,550,000

39,330

Page 33 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

5.52%

11-Feb-16

CCMT6C4A

Industrial

0.00

8,400,000

38,640

5.56%

11-Apr-16

CCMT6C4A

Office

0.00

8,250,000

38,225

5.51%

11-Feb-16

CCMT6C4A

Office

0.00

8,200,000

37,679

5.49%

11-Feb-16

CCMT6C4A

Mixed Use

0.00

8,005,427

45,657

5.79%

11-Jan-21

CCMT6C4A

Retail

0.00

7,900,000

38,118

6.28%

1-Jun-16

CCMT6C4B

Multifamily

0.00

7,742,689

47,869

6.65%

1-Jun-16

CCMT6C4A

Other

0.00

7,593,327

48,789

5.70%

11-Mar-16

CCMT6C4A

Retail

0.00

7,500,000

35,594

100

5.60%

11-Mar-16

CCMT6C4B

Multifamily

0.00

7,500,000

35,000

101

5.49%

11-Apr-16

CCMT6C4A

Mixed Use

0.00

7,500,000

34,313

102

5.64%

11-Mar-16

CCMT6C4A

Retail

0.00

7,455,000

35,039

103

5.66%

11-Jan-16

CCMT6C4A

Office

0.00

7,430,000

35,045

104

5.77%

1-May-16

CCMT6C4A

Office

0.00

7,300,000

35,101

105

5.46%

11-Jan-16

CCMT6C4B

Multifamily

0.00

7,275,000

33,101

106

5.51%

11-Feb-16

CCMT6C4A

Office

0.00

7,240,000

33,268

107

5.63%

11-Mar-16

CCMT6C4A

Office

0.00

7,000,000

32,842

108

6.17%

1-May-16

CCMT6C4A

Other

0.00

6,981,476

45,831

109

5.49%

11-Feb-16

CCMT6C4A

Office

0.00

6,940,000

31,751

110

7.56%

1-May-21

CCMT6C4B

Multifamily

0.00

6,891,307

48,530

111

6.61%

11-May-16

CCMT6C4A

Other

0.00

6,883,095

47,043

112

6.21%

1-May-16

CCMT6C4A

Retail

0.00

6,863,000

35,516

113

5.46%

11-Feb-16

CCMT6C4B

Multifamily

0.00

6,600,000

30,047

114

5.68%

11-Apr-16

CCMT6C4B

Multifamily

0.00

6,126,357

35,568

115

Page 34 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

5.77%

11-Jan-21

CCMT6C4A

Retail

0.00

6,053,512

35,627

116

5.36%

11-Mar-16

CCMT6C4A

Manufactured Housing

0.00

6,000,000

26,800

117

5.61%

11-Feb-16

CCMT6C4A

Retail

0.00

6,000,000

28,025

118

5.36%

11-Oct-15

CCMT6C4A

Other

0.00

5,954,704

36,588

119

5.61%

11-Jan-16

CCMT6C4A

Office

0.00

5,862,521

33,908

120

5.25%

11-Dec-15

CCMT6C4B

Multifamily

0.00

5,865,000

25,659

121

5.52%

11-Feb-16

CCMT6C4A

Office

0.00

5,840,000

26,854

122

5.67%

11-Jan-16

CCMT6C4A

Retail

0.00

5,713,901

33,264

123

5.69%

11-Feb-21

CCMT6C4A

Retail

0.00

3,583,130

16,990

124

5.69%

11-Feb-21

CCMT6C4A

Retail

0.00

1,120,980

5,315

125

5.69%

11-Feb-21

CCMT6C4A

Retail

0.00

1,015,890

4,817

126

6.30%

1-Jun-16

CCMT6C4A

Retail

0.00

5,642,692

34,960

127

5.54%

11-Mar-16

CCMT6C4A

Retail

0.00

5,500,000

25,369

128

5.60%

11-Mar-16

CCMT6C4B

Multifamily

0.00

5,500,000

25,644

129

5.81%

1-Jun-16

CCMT6C4A

Retail

0.00

5,500,000

26,629

130

5.43%

11-Feb-16

CCMT6C4A

Mixed Use

0.00

5,350,000

24,200

131

5.67%

11-Jan-16

CCMT6C4A

Retail

0.00

5,312,437

30,927

132

5.70%

11-Feb-16

CCMT6C4A

Other

0.00

5,259,527

33,167

133

5.93%

1-May-16

CCMT6C4B

Multifamily

0.00

5,155,000

25,474

134

5.52%

11-Feb-16

CCMT6C4A

Office

0.00

5,120,000

23,539

135

5.44%

11-Mar-16

CCMT6C4A

Retail

0.00

5,080,000

23,029

136

5.93%

11-Apr-16

CCMT6C4A

Other

0.00

5,028,627

32,321

137

5.42%

11-Mar-16

CCMT6C4B

Multifamily

0.00

4,979,144

28,139

138

Page 35 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

5.33%

11-Apr-16

CCMT6C4A

Retail

0.00

4,983,700

27,843

139

5.53%

11-Apr-16

CCMT6C4A

Industrial

0.00

4,805,000

22,155

140

5.25%

11-Jun-15

CCMT6C4A

Retail

0.00

4,761,696

26,694

141

5.40%

11-Sep-15

CCMT6C4A

Retail

0.00

4,747,567

26,953

142

5.43%

11-Jan-16

CCMT6C4B

Multifamily

0.00

4,750,000

21,474

143

5.88%

11-Apr-16

CCMT6C4A

Other

0.00

4,679,944

29,938

144

6.63%

1-Jun-16

CCMT6C4A

Other

0.00

4,494,112

30,751

145

6.23%

1-May-16

CCMT6C4A

Retail

0.00

4,500,000

23,363

146

5.79%

11-Jan-21

CCMT6C4A

Retail

0.00

4,500,000

21,713

147

5.81%

11-Apr-16

CCMT6C4A

Retail

0.00

4,100,000

19,851

148

6.29%

11-May-16

CCMT6C4A

Office

0.00

4,039,510

26,822

149

5.79%

11-May-16

CCMT6C4A

Retail

0.00

3,992,342

23,452

150

5.69%

11-May-16

CCMT6C4A

Retail

0.00

3,992,172

23,198

151

5.63%

11-Jan-16

CCMT6C4A

Office

0.00

3,890,000

18,251

152

5.65%

11-Mar-16

CCMT6C4A

Retail

0.00

3,834,717

22,224

153

5.56%

11-Mar-16

CCMT6C4A

Office

0.00

3,685,023

21,148

154

5.39%

11-Aug-12

CCMT6C4A

Retail

0.00

3,537,191

20,080

155

5.51%

11-Jan-16

CCMT6C4A

Retail

0.00

3,520,000

16,163

156

5.59%

11-Feb-16

CCMT6C4A

Office

0.00

3,431,250

19,784

157

6.24%

1-May-16

CCMT6C4A

Office

0.00

3,394,111

20,912

158

6.22%

1-May-16

CCMT6C4B

Multifamily

0.00

3,394,084

20,868

159

5.51%

11-Apr-16

CCMT6C4A

Office

0.00

2,892,000

13,279

160

5.54%

11-Jan-16

CCMT6C4A

Retail

0.00

2,842,557

16,307

161

Page 36 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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)

Revised Date:

6.12%

1-Jun-16

CCMT6C4B

Multifamily

0.00

2,597,471

15,789

162

5.49%

11-Nov-15

CCMT6C4A

Retail

0.00

2,354,561

13,470

163

5.84%

11-Feb-16

CCMT6C4A

Retail

0.00

1,890,147

11,197

164

5.83%

11-Feb-16

CCMT6C4A

Retail

0.00

1,740,908

10,302

165

6.45%

1-Jun-16

CCMT6C4B

Multifamily

0.00

864,210

5,439

166

2,262,748,044

11,656,652

Page 37 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Appraisal Reduction Detail

Disclosure

Control#

Appraisal

Red. Date

Scheduled

Balance

ASER

Note

Rate

Maturity

Date

Property

Type

Geographic

Location

Appraisal

Value Date

DSCR

Revised Date:

Remaining Term

Life

Amount

Current P&I

Advance

Page 38 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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

Revised Date:

Loan

Status

Code(1)

Note Rate

Not Avail

Not Avail Not Avail

Page 39 of 45

(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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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

Disclosure

Control #

Resolution

Strategy

Comments

Revised Date:

Page 40 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Modified Loan Detail

Disclosure

Control #

Modification

Date

Cutoff

Maturity

Date

Modification

Description

Modified
Maturity

Date

Revised Date:

Ending

Principal

Balance

Page 41 of 45

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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Maturity Extension Summary

Revised Date:

Loans which have had their Maturity Dates extended

Stated Principal Balance outstanding:
Weighted Average Extension Period:

Loans in the process of having their Maturity Dates extended

Stated Principal Balance outstanding:
Weighted Average Extension Period:

Loans in the process of having their Maturity Dates further extended

Cutoff Principal Balance:
Weighted Average Extension Period:

Loans paid-off that did experience Maturity Date extensions

Cutoff Principal Balance:
Weighted Average Extension Period:

0.00

Number of Loans:

0.00

Number of Loans:

0.00

Loans paid-off that did not experience Maturity Date extensions

Number of Loans:
Cutoff Principal Balance:

0.00

Page 42 of 45

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

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

Revised Date:

Current Total

Cumulative

Page 43 of 45

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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

Historical Collateral Level REO Report

Property

Type

Revised 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: 723837.1

Other

Revenue

Recovered

Type

(*)

Page 44 of 45

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

Citigroup Commercial Mortgage Securities Inc.

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

31-Jul-06
17-Jul-06

N/A

17-Aug-06

30-Jun-06

Commerical Mortgage Pass-Through Certificates

Series 2006-C4

ABN AMRO Acct: 723837.1

Material Breaches and Material Document Defect Detail

Disclosure

Control #

Material Breach and Material Document Defect

Description

Material

Breach

Date

Revised Date:

Ending

Principal

Balance

Page 45 of 45

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

Citigroup Commercial Mortgage Trust 2006-C4 10-D