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Cogent Renews Relationship with Universities Network Representative, The Quilt

WASHINGTON, D.C., August 9, 2004 - Cogent Communications Group, Inc. (AMEX: COI), a multinational Tier One, optical Internet service provider, is pleased to announce that The Quilt has extended its relationship with Cogent by including Cogent as one of its Authorized Quilt Vendors. Through the agreement, The Quilt members are able to obtain Cogent's Internet access services on favorable consortium terms. The Quilt members represent over 200 universities and thousands of other research institutions across the country.

For the past year, Cogent was working with The Quilt, providing national pricing under its less formal Vendor Information Exchange program. Cogent was selected as an Authorized Quilt Vendor based on the superior quality and performance of its network.

Including current Quilt members, Cogent serves over 100 educational institutions including universities, colleges and schools.

About The Quilt™

The Quilt gathers more than 20 leading research and education networking organizations in the United States to promote consistent, reliable, interoperable and efficient advanced networking services that extend to the broadest possible community, and to represent common interests in the development and delivery of advanced network services. Participants in The Quilt provide network service for more than 200 Internet2 universities and thousands of other educational institutions. Internet2, a university-led research and development consortium, provides organizational support for The Quilt. For more information, see: www.thequilt.net.

About Cogent Communications

Cogent is a facilities-based provider of low-cost, high-speed Internet access and Internet Protocol, or IP, connectivity in North America and Europe. Cogent Communications' global headquarters is located at 1015 31st Street, NW, Washington, D.C. 20007.

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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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