The 206-508 exchange is serviced by the following companies within the SEATTLE ratecenter.
"GLOBAL CROSSING LOCAL SERVICES, INC.-WA"
Call are routed trough OCN 8391 and CLLI - STTLWAWBDS5 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in SEATTLE LCL SRVCS.
Who's number is 206-508 Numbers?