The 360-299 exchange is serviced by the following companies within the MT VERNON ratecenter.
FRONTIER COMMUNICATIONS NORTHWEST INC. - WA
Call are routed trough OCN 4324 and CLLI - ANCRWAXXDS1 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in ANACORTES.
Who's number is 360-299 Numbers?