Our Harrisburg datacenter uses a blend of Tier 1 & 2 carriers including Verizon, Level(3), Comcast, and Frontier Communications. The facility has three fiber links to 401 N Broad St, a major carrier hotel in Philadelphia. Switching is handled by enterprise-class Juniper and HP equipment.
Our Dallas datacenter also uses a blend of Tier 1 & 2 carriers including Zayo Group, TeliaSonera International, CenturyLink, Cogent, and Internap. Six pairs of fiber (two stands each) feed into redundant border and core routers, with redundant links to each switch. Switching is handled by enterprise-class Cisco equipment.