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: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-704 A Walla Walla WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-01-09   
509-704 8 Walla Walla WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-01-09   
509-704 9 Walla Walla WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2025-01-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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