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: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-721 A Davenport WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-721 0 Davenport WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-721 1 Davenport WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-721 7 Davenport WA   483E ONVOY, LLC - WA 676   2011-03-28   
509-721 8 Davenport WA   3229 COMPUTERS 5*, INC. DBA LOCALTEL - WA 676   2020-08-27   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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