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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-310 A White Salmon WA PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
509-310 3 White Salmon WA PTLDORWNAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 672   2014-05-05   
509-310 7 White Salmon WA PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2023-06-17   
509-310 8 White Salmon WA PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2021-03-14   
509-310 9 White Salmon WA PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      

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

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