------------------------------ OMB APPROVAL ------------------------------ OMB Number Expires: Estimated average burden hours per response ....... .5 ------------------------------ U.S. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940 [ ] Check this box if no longer subject of Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). ================================================================================ 1. Name and Address of Reporting Person* Yawman Philip -------------------------------------------------------------------------------- (Last) (First) (Middle) 362 Hartsville Lane -------------------------------------------------------------------------------- (Street) Webster NY 14604 -------------------------------------------------------------------------------- (City) (State) (Zip) ================================================================================ 2. Issuer Name and Ticker or Trading Symbol Choice One Communications Inc. ("CWON") ================================================================================ 3. IRS or Social Security Number of Reporting Person (Voluntary) ================================================================================ 4. Statement for Month/Year August, 2000 ================================================================================ 5. If Amendment, Date of Original (Month/Year) ================================================================================ 6. Relationship of Reporting Person to Issuer (Check all applicable) [ ] Director [ ] 10% Owner [ X ] Officer (give title below) [ ] Other (specify below) Executive Vice President, Corporate Developement ================================================================================ 7. Individual or Joint/Group Filing (Check applicable line) [ X ] Form filed by one Reporting Person [ ] Form filed by more than one Reporting Person ================================================================================ Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned ================================================================================

* If the form is filed by more than one Reporting Person, see Instruction 4(b)(v). Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Page 1 of 2 FORM 4 (continued) Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) ================================================================================

Expanation of Responses: 1 Shares owned by P.H.Y. Associates, L.P. of which Mr. Yawman is the sole stockholder of the sole general partner. Mr. Yawman disclaims beneficial ownership of these shares. 2 Options to purchase shares of the Issuer's Common Stock granted under its 1998 Employee Stock Option Plan, as amended. 3 3,300 Shares will become exercisable on 8/1/01, 573 shares will become exercisable on the first day of each month thereafter until 7/1/03, and 21 shares will become exercisable on 8/1/03. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currenty valid OMB #. /s/Philip Yawman 8/25/00 --------------------------------------------- ----------------------- **Signature of Reporting Person Date ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure. Alternatively, this Form is permitted to be submitted to the Commission in electronic format at the option of the reporting person pursuant to Rule 101(b)(4) of Regulation S-T. Page 2 of 2 (122797DTI)

CHOICE ONE COMMUNICATIONS INC 4