The 920-525 exchange is serviced by the following companies within the NICHOLS ratecenter.
CENTURYTEL CENTRAL WISCONSIN LLC DBA CENTURYLINK
Call are routed trough OCN 1159 and CLLI - NCHLWIXARS0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in NICHOLS.
Who's number is 920-525 Numbers?