The 920-863 exchange is serviced by the following companies within the DENMARK ratecenter.
CENTURYTEL CENTRAL WISCONSIN LLC DBA CENTURYLINK
Call are routed trough OCN 1159 and CLLI - DNMKWIXADS0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in DENMARK.
Who's number is 920-863 Numbers?