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Cogent Guarantees 5-Day Service to At-Risk Cable & Wireless Customers

WASHINGTON, D.C., June 6, 2003 - Cogent Communications Group, Inc. (AMEX: COI), a Tier One, next-generation optical Internet Service Provider (ISP), announced today that it will offer service delivery guarantees of 5 business days or less to all Cable & Wireless ISP customers in danger of losing Internet connectivity. This offer is in response to Cable & Wireless' recent announcement that it would cease U.S. operations.

This 5-day service delivery guarantee builds on the success of the same promotion Cogent offered in February to stranded Genuity customers. The seamless transfer of Genuity customers proved Cogent's ability to provide business continuity. Cogent's 100 Megabits-per-second (Mbps) or 1,000 Mbps Internet service is available in 750-plus Point of Presence (PoP) locations nationwide in which Cogent currently offers service, including colocation facilities.

Cogent can guarantee a 5-day turnaround because the ISP owns its own, facilities-based network. With no need to coordinate with traditional telcos, Cogent streamlines the installation process, making the combination of quick provisioning and low bandwidth pricing an attractive combination for ISPs looking for an immediate solution.

"Cogent's network is well equipped to meet the needs of small- to medium-sized ISPs with our radical pricing of $30 per megabit. Customers deemed not profitable to Cable & Wireless can be well served by Cogent, and we welcome their business," said Dave Schaeffer, CEO of Cogent Communications.

Parties interested in this five-day service delivery option can request more information or immediate service by sending an e-mail to This email address is being protected from spambots. You need JavaScript enabled to view it. with "5-day Installation" as the subject line.

About Cogent Communications

Cogent Communications (AMEX: COI) is a Tier 1, facilities based, all-optical ISP focused on delivering ultra-high speed Internet access and transport services to businesses in the multi-tenant marketplace and to service providers located in major metropolitan areas across the United States and Canada. Cogent's simple product set includes either 100 Mbps or 1,000 Mbps dedicated, non-oversubscribed bandwidth at $1,000 and $10,000 per month respectively. These connections are delivered over Cogent's 80 Gbps backbone, making Cogent's network the largest of its kind in the country.

The Cogent solution offers the elusive combination of higher quality at a lower price. Technology, combined with network ownership has made Cogent's ultra-high speed Internet access an affordable reality for small and medium-sized businesses, as well as a significant cost saver for the largest enterprises and service providers.

Cogent's network consists of a dedicated nationwide multiple OC-192 fiber backbone, multiple intra-city OC-48 fiber rings, and optically-interfaced high-speed routers. Cogent has been recognized as the first IP Optical Cisco Powered Network (CPN). In April 2002, Cogent acquired the majority of the U.S. operations of PSINet including their three data centers located in NY, LA and Herndon, VA. As a result of the acquisition, Cogent is now offering service in over 30 metropolitan markets with bandwidth ranging from T1 to 1,000 Mbps as well as colocation services in the data center locations.

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 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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Cogent is one of the world's largest Internet Service Providers, delivering high quality Internet, Ethernet and Colocation services to over 66,980 Enterprise and NetCentric customers. Cogent serves over 198 markets in 41 countries across its facilities-based, all-optical IP network.

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