Here's an interesting PDF from Frontier (who bought a lot of the Verizon around here)

https://www.frontier.com/Documents/wholesale/FrontierSPID-OCNList_Eff030112.pdf

In WV, the circuits are all CZUC (from what I've seen). 50 circuits are usually provisioned as T1s. 51s are reseller/ILEC circuits.


Jeff
Lead Field Engineer, MSCNS