WASHINGTON, D.C., January 22, 2002 - Cogent Communications, a Tier One provider of ultra high-speed Internet access and long-haul and metropolitan transport services, today announced a multi-year agreement with PAIX.net, Inc. (PAIX), including all PAIX locations throughout the United States. PAIX is a leading carrier-neutral Internet exchange and subsidiary of Metromedia Fiber Network, Inc. (MFN) (Nasdaq: MFNX). This agreement allows Cogent to maximize multi-lateral peering relationships to further enhance the efficiency and performance of its network. Cogent will leverage the reliability, security, and scalability provided through PAIX's locations to deliver unprecedented bandwidth services at radically low cost to its commercial and service provider customers.

"Cogent is very pleased to reach an agreement with PAIX that allows Cogent to create private and public third-party peering relationships at all the PAIX facilities in the United States," said Dave Schaeffer, CEO and founder of Cogent Communications. "Cogent clearly benefits from using the PAIX peering points to further build relationships with other third party service providers who share the same goal of providing their customers the best experience possible while on the Internet," he added.

PAIX's strategically placed Internet Exchange locations complement Cogent's current architecture, further enhancing the reach and proximity to customers of Cogent's nationwide IP Optical end-to-end network. Cogent Communications has multiple metropolitan OC-48 rings in 20 major cities that deliver non-blocking data traffic using Dense Wavelength Division Multiplexing (DWDM). These metro rings are connected via a multiple OC-192 national backbone utilizing IP over DWDM technology. "Cogent's commitment to participating in all our sites will add value for all our customers at each site who want and need to exchange traffic with Cogent," said Tim Guarnieri, VP and General Manager of PAIX.net, Inc. "Cogent is, and will continue to be, an integral participant in our PAIX facilities."

PAIX.net serves as a primary Internet peering hub and enables the exponential growth of the Internet through its geographically dispersed facilities. National service providers depend on PAIX.net to provide regional and national carrier-independent data switching, promoting faster network performance.

About PAIX.net

PAIX.net, Inc., headquartered in Palo Alto, California, began operations in 1996 as Digital Equipment Corporation's Palo Alto Internet Exchange. Having proven itself as a vital part of the Internet infrastructure, PAIX serves as a packet switching center for ISPs. PAIX also offers secure, fault-tolerant co-location services to ISPs. PAIX enables ISPs to form public and private peering relationships with each other and choose from multiple telecommunications carriers for circuits, all within the same facility. PAIX is a subsidiary of Metromedia Fiber Network, Inc. To ensure its neutrality, it operates as a separate entity with its own management. PAIX currently has locations in Palo Alto, CA, Vienna, VA, Seattle, New York City, Atlanta, and Dallas, with additional facilities in Boston and Los Angeles to open later this year. For additional information about PAIX, call 877-PAIXnet (877-724-9638) or visit its web site at www.paix.net.

About MFN

Metromedia Fiber Network, Inc., the leader in deployment of optical IP Internet infrastructure within key metropolitan areas domestically and internationally, is revolutionizing the fiber-optic industry. Its global optical Internet uses open peering and "best exit" technology to deliver fast, scaleable and reliable connections to the Internet, and improves the Internet experience for end-users. For more information about Metromedia Fiber Network, please visit the company's Web site at www.mfn.com.

About Cogent Communications

Cogent Communications is a next generation 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 throughout the United States. Cogent's facilities-based, all-optical end-to-end IP network enables non-oversubscribed 100 Mbps and 1000 Mbps connectivity for radically low, unmetered pricing levels. Cogent's signature service offered to commercial end-users - 100 Mbps for $1,000 per month - offers 100 times the observed bandwidth of a T-1 connection at two-thirds of the cost. The Cogent Solution makes ultra-high speed Internet access an affordable reality for small and medium-sized businesses, as well as large 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). Cogent is currently servicing 20 metropolitan markets. Cogent Communications is a privately held company headquartered at 1015 31st Street, NW, Washington, D.C. 20007. For more information, visit www.cogentco.com. For general inquiries, Cogent Communications can be reached 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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