The 206-257 exchange is serviced by the following companies within the SEATTLE ratecenter.
"COMCAST PHONE OF WASHINGTON/OREGON, LLC - WA"
Call are routed trough OCN 6060 and CLLI - STTNWAHODS1 (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in SEATTLE.
Who's number is 206-257 Numbers?