(B)Our Cisco® powered network is connected to a 100 percent fiber-optic, nonblocking OC-192 global backbone with direct Gigabit Ethernet connections to Williams®, and Verio® (DIA customers only). To ensure maximum reliability and superior scalability, United.Colo integrates sophisticated and proven technologies such as Metro Dense Wavelength Division Multiplexing (DWDM), telco grade terabit routers, and high-end switches.
Network connectivity is also enhanced by using Layer 3-7 routing protocol to guarantee data transfer at optimal speed. This unparalleled level of scalability and unmatched uptime guarantee give our customers worldwide more control in managing the communication needs of their enterprises. (/B)
Guess I was wrong about Cogent, cause it's Williams and Verio.
http://www.unitedcolo.com/network.htm