The 920-837 exchange is serviced by the following companies within the CASCO ratecenter.
CENTURYTEL MW-WISCONSIN DBA CENTURYLINK- CASCO
Call are routed trough OCN 857 and CLLI - CASCWIXADS0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in CASCO.
Who's number is 920-837 Numbers?