TORONTO, ON, May 6, 2004 - Cogent Communications, a multinational Tier One, optical Internet service provider, today announced it has connected Cogent's dedicated IP-only global network to over 45 customers in the 151 Front Street Data Center. Several of these customers are located within the facilities of other 151 Front Street tenants like Switch and Data, whose cooperation has helped to make Toronto Cogent's 4th largest market. As a result of this success, Cogent will be sponsoring a celebration party at the 151 Front Street location.

Cogent's high-speed Internet access service is delivered in Toronto by Cogent's wholly-owned subsidiary Shared Technologies of Canada (STOC), which Cogent acquired in early 2002.

For a flat monthly price of $5,000 CAD, service provider customers in Toronto receive a 100 Megabits-per-second (Mbps) dedicated, non-oversubscribed Internet access connection.

"In today's competitive market place, quality service and on-time delivery are key to our customers' success," said Randy Douglas, Toronto Site Manager for Switch and Data. "Cogent has always been a key player in contributing to this level of outstanding service."

"In 2002 Cogent realized the opportunity the Toronto market represented and we opened our first office here," said Steve McGill, General Manager of the Toronto office. "Our relationship with Switch and Data will ensure we are able to continually meet the growing needs of this important market."

Cogent Communications and Switch and Data are taking part in a celebration/informational open house on Thursday, May 13th from 2:00 to 4:00 p.m. at the 51 Front Street West building in Toronto. This event will help highlight the combined strength that Cogent and Switch and Data bring to the table as a solution for safe, reliable connectivity at a value that can not be beat. For more information on attending, contact Cogent at 202-295-4288.

About Cogent Communications

Cogent Communications (AMEX: COI) is a multinational, Tier 1 Internet service provider. Cogent's facilities based, all-optical network delivers ultra-high speed Internet access and transport services to businesses, universities and service providers in major metropolitan areas across North America and Europe. Cogent's unique network – designed exclusively for Internet data – enables Cogent to provide customers with a very reliable, high performance, dedicated connection at a price that can not be matched by competitors. Cogent has a presence in 11 countries with over 105 major points of presence including over 45 Cogent-owned colocation facilities.

Cogent Communications is headquartered at 1015 31st Street, NW, Washington, D.C. 20007. For more information, visit www.cogentco.com. Cogent Communications can be reached in the United States at (202) 295-4200 or via email at This email address is being protected from spambots. You need JavaScript enabled to view it..

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Information in this release may involve expectations, beliefs, plans, intentions or strategies regarding the future. These forward-looking statements involve risks and uncertainties. All forward-looking statements included in this release are based upon information available to Cogent Communications Group, Inc. as of the date of the release, and we assume no obligation to update any such forward-looking statement. The statements in this release are not guarantees of future performance and actual results could differ materially from our current expectations. Numerous factors could cause or contribute to such differences. Some of the factors and risks associated with our business are discussed in Cogent's registration statements filed with the Securities and Exchange Commission and in its other reports filed from time to time with the SEC.

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