Phone number details for 509-620 numbers
The 509-620 exchange is serviced by the following companies within the COULEE DAM ratecenter.
"ZAYO BANDWIDTH NORTHWEST, INC."
Call are routed trough OCN 4584 and CLLI - WNTCWAAC00T (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in .
Working 509-620-xxxx local exchanges
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