The 307-788 exchange is serviced by the following companies within the WEST LYMAN ratecenter.
UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY
Call are routed trough OCN 4531 and CLLI - LYMNNEXURP0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in LYMAN.