UUNET is by far the largest Tier 1 by any relevant measure and is already approaching a dominant position in the Internet backbone market. Based upon a study conducted in February 2000, UUNET's share of all Internet traffic sent to or received from the customers of the 15 largest Internet backbones in the United States was 37%, more than twice the share of Sprint, the next-largest Tier 1, which had a 16% share. These 15 backbones represent approximately 95% of all U.S. dedicated Internet access revenues. UUNET's and Sprint's 53% combined share of Internet traffic is at least five times larger than that of the next-largest IBP.
UUNET is by far the largest Tier 1 by any relevant measure and is already approaching a dominant position in the Internet backbone market. Based upon a study conducted in February 2000, UUNET's share of all Internet traffic sent to or received from the customers of the 15 largest Internet backbones in the United States was 37%, more than twice the share of Sprint, the next-largest Tier 1, which had a 16% share. These 15 backbones represent approximately 95% of all U.S. dedicated Internet access revenues. UUNET's and Sprint's 53% combined share of Internet traffic is at least five times larger than that of the next-largest IBP.