The 509-399 exchange is serviced by the following companies within the STARBUCK ratecenter.
"CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK"
Call are routed trough OCN 2408 and CLLI - STRBWAXARS0 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in STARBUCK.
Who's number is 509-399 Numbers?