Area Code 509-420 Map and Location

Phone number details for 509-420 numbers

The 509-420 exchange is serviced by the following companies within the RICHLAND ratecenter.

AT&T LOCAL

Call are routed trough OCN 7421 and CLLI - SPKNWA01VMD (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in SPOKANE.