------------------------------ OMB APPROVAL [ ] Check this box if no longer ------------------------------ subject to Section 16. Form 4 or OMB Number 3235-0287 Form 5 obligations may continue. Expires: 12-31-2001 See Instruction 1(b). Estimated average burden hours per response ....... 0.5 ------------------------------ U.S. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 4 STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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 -------------------------------------------------------------------------------- 1. Name and Address of Reporting Person* McClane Michael John -------------------------------------------------------------------------------- (Last) (First) (Middle) FASTNET Corporation 3864 Courtney Street, Suite 130 -------------------------------------------------------------------------------- (Street) Bethlehem PA 18017 -------------------------------------------------------------------------------- (City) (State) (Zip) -------------------------------------------------------------------------------- 2. Issuer Name and Ticker or Trading Symbol FASTNET Corporation (FSST) -------------------------------------------------------------------------------- 3. IRS Identification Number of Reporting Person, if an Entity (Voluntary) -------------------------------------------------------------------------------- 4. Statement for Month/Year 8/02 -------------------------------------------------------------------------------- 5. If Amendment, Date of Original (Month/Year) -------------------------------------------------------------------------------- 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) [_] Director [_] 10% Owner [X] Officer (give title below) [_] Other (specify below) Vice President Finance -------------------------------------------------------------------------------- 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 ================================================================================

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 4(b)(v). (Over) SEC 1474(3-99) FORM 4 (continued) Table II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (e.g., puts, calls, warrants, options, convertible securities) ================================================================================

Explanation of Responses: /s/ Michael J. McClane September 3, 2002 --------------------------------------------- ----------------------- **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. Page 2

MCCLANE MICHAEL J 4