UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP ( ) Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instructions 1(b). 1. Name and Address of Reporting Person Pizzani, Paul G. 7 Oakshade Avenue Darien, CT 06820 USA 2. Issuer Name and Ticker or Trading Symbol Viatel, Inc. VYTL 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(s) to Issuer (Check all applicable) (X) Director ( ) 10% Owner ( ) Officer (give title below) ( ) Other (specify below) 7. Individual or Joint/Group Filing (Check Applicable Line) (X) Form filed by One Reporting Person ( ) Form filed by More than One Reporting Person

Explanation of Responses: (1) Includes 1,004 shares of restricted stock granted as the non-cash portion of the reporting person's 1999 and 2000 director's fee, all of which are vested. (2) These options are currently fully vested and exercisable. (3) Options to purchase shares of Common Stock will vest and become exercisable as to 33.34% of these options on January 4, 2001 and the remainder will vest and become exercisable on each successive anniversary date thereafter to the extent of 33.33% of these options. SIGNATURE OF REPORTING PERSON /s/ Paul G. Pizzani DATE September 11, 2000

VIATEL INC 4