Verizon
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Verizon's synchronous optical network (SONET) is a fast network backbone over which ultra-high-speed, high-volume voice, video and data applications are run. Verizon's extensive SONET system uses self-healing rings of dual fiber-optic strands for fast, survivable transport.
Savvis
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The SAVVIS IP network spans 105 cities in 47 countries, encompassing the U.S., Canada, Latin America, Europe, The Middle East, Asia and the Pacific Rim. SAVVIS uses network-based routing, security and quality services, delivered on an as-needed utility basis, and are supported by an automated service model that further reduces costs and enhances the customer experience.
Sprint
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One of the world's largest Tier 1 IP networks - connecting over 25% of the world's Internet traffic. The Sprint IP backbone has more Autonomous System network connections than any other, with high-speed links that operate up to OC-192 / STM-64 - the fastest speeds available over IP today.