WASHINGTON, D.C., December 3, 2004 - Cogent Communications Group, Inc. (AMEX: COI), one of the fastest growing Internet service providers in the industry, announced today that its combination of price, quality and customer service has attracted some of the top higher educational institutions in America to sign for Cogent's ultra-high bandwidth Internet service.

In reviewing data from the 2005 U.S. News & World Report "America's Best Colleges and Graduate Schools, Cogent provides bandwidth to:

Half of the Top 100 America's Best Colleges,

More than half of the Top 50 Business Schools, and

More than half of the Top 50 Law Schools

"Cogent is committed to providing educational programs with the highest quality and most competitively priced service available in the market today. It would be hard for universities to find Tier 1 dedicated Internet service for less then the $10 per megabit of dedicated, non-oversubscribed Internet access that Cogent currently offers," said Andrew Hathaway, VP of Wholesale Services at Cogent.

A key factor in Cogent's successful penetration of the university market has been its relationship with regional organizations such as SURA (Southeastern Universities Research Association), which fosters collaboration on IT initiatives among over 60 universities located throughout the southeastern United States.

"SURA has found a great deal of value in Cogent's Internet service," said Gary Crane, Director of IT Initiatives. "Cogent's price-point has enabled SURA to coordinate a large amount of bandwidth at a very low price, providing a significant benefit to our participating members."

"We have seen customer bandwidth growth, particularly at the college level, growing between 100% and 300% per annum. This dynamic growth rate becomes an issue for universities trying to remain within a budget," said Dave Schaeffer, CEO Cogent Communications. "Cogent's philosophy of providing large amounts of bandwidth at cost-effective, flat rate pricing provides the perfect solution for Universities looking to meet bandwidth demand and remain within budget."

Cogent continues to work with individual universities, school districts and research institutions as well as large regional organizations like SURA to provide millions of students with ultra high speed bandwidth to meet the needs of the Net-Ready Generation.

About Cogent Communications

Cogent Communications (AMEX: COI) is a next generation, multinational, Tier 1 ISP. Its facilities based, all-optical network delivers ultra-high speed Internet access and transport services to business and service providers in major metropolitan areas across North America and Europe. Since opening its doors in 1999, Cogent's elusive combination of high quality, reliable, low cost bandwidth and superior customer support have enabled Cogent to become one of the fastest growing ISPs in the industry. Cogent was recently ranked as the number one fastest growing company in 2004 in the Washington, DC area by the Washington Business Journal.

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 Diese E-Mail-Adresse ist vor Spambots geschützt! Zur Anzeige muss JavaScript eingeschaltet sein!.

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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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