Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 776

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-776 A Columbia WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676      
509-776 0 Columbia WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676      
509-776 6 Columbia WA SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2021-06-26   
509-776 7 Columbia WA SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2020-07-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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