The 920-321 exchange is serviced by the following companies within the GREEN BAY ratecenter.
"MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- WI"
Call are routed trough OCN 8283 and CLLI - GNBYWI06DS0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in GREEN BAY.
Who's number is 920-321 Numbers?