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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-600 A Bridgeport WA SPKNWA01XXX  483E ONVOY, LLC - WA 676      
509-600 0 Bridgeport WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2015-11-09   
509-600 1 Bridgeport WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2017-09-15   
509-600 2 Bridgeport WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2016-02-28   
509-600 3 Bridgeport WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2021-06-26   
509-600 6 Bridgeport WA SPKNWADZ7MD  965H FRACTEL, LLC 676   2021-05-17   

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

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