Moscow and New York (August 20, 2003) - Open Joint Stock Company "Vimpel-Communications" ("VimpelCom" or the "Company") (NYSE: VIP)announced today that it will webcast its conference call on its second quarter 2003 financial results on Thursday, August 28, 2003, at 10:30 a.m. Eastern time. The conference call will be hosted by Jo Lunder, Chief Executive Officer, who will be joined by Nikolai Pryanishnikov, First Vice President - Commercial Director, Elena Shmatova, Chief Financial Officer and Valery Goldin, Vice President of International and Investor Relations. The press release announcing the Company's second quarter 2003 financial results will be available on the Company's web site, located at https://www.vimpelcom.com, prior to the conference call.

The webcast can be accessed live on the Company's web site at https://www.vimpelcom.com. For those who will be unable to listen to the live webcast, it will be archived on the Company's web site until September 29, 2003.

VimpelCom is a leading provider of telecommunications services in Russia, operating under the "Bee Line" brand, which is one of the most recognized brand names in Russia. The VimpelCom Group's license portfolio covers approximately 92% of Russia's population (134 million people), including the City of Moscow, the Moscow Region and the City of St. Petersburg. VimpelCom was the first Russian company to list its shares on the New York Stock Exchange ("NYSE"). VimpelCom's ADSs are listed on the NYSE under the symbol "VIP". VimpelCom's convertible notes are listed on the NYSE under the symbol "VIP 05".

For more information, please contact:
Valery Goldin
VimpelCom (Moscow)
Tel: 7(095) 974-5888
vgoldin@VimpelCom.com

Christopher Mittendorf
Edelman Financial Worldwide
Tel: (212) 704-8134
christopher.mittendorf@edelman.com