Local Calling Guide

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NPA: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-283 A Fairfield WA FRFDWAXARS2  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-283 1 Fairfield WA   483E ONVOY, LLC - WA 676   2017-10-08   
509-283 2 Fairfield WA   4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-283 3 Fairfield WA   663D ELTOPIA COMMUNICATIONS, LLC - WA 676   2008-06-29   
509-283 4 Fairfield WA   4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-283 5 Fairfield WA   483E ONVOY, LLC - WA 676   2021-06-27   
509-283 7 Fairfield WA   483E ONVOY, LLC - WA 676   2007-04-20   
509-283 8 Fairfield WA   483E ONVOY, LLC - WA 676   2021-03-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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