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: 516

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-516 A Walla Walla WA WLWLWA018MD  6529 T-MOBILE USA, INC. 676      
509-516 0 Walla Walla WA   073H TELNYX LLC 676   2021-05-08   
509-516 1 Walla Walla WA   483E ONVOY, LLC - WA 676   2021-06-27   
509-516 2 Walla Walla WA   483E ONVOY, LLC - WA 676   2021-06-27   
509-516 3 Walla Walla WA   483E ONVOY, LLC - WA 676   2021-06-27   
509-516 4 Walla Walla WA   483E ONVOY, LLC - WA 676   2021-06-27   
509-516 5 Walla Walla WA   483E ONVOY, LLC - WA 676   2021-11-20   
509-516 6 Walla Walla WA   6529 T-MOBILE USA, INC. 676   2021-06-04   
509-516 7 Walla Walla WA   939H COMMIO, LLC 676   2022-07-23   
509-516 8 Walla Walla WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2022-07-28   
509-516 9 Walla Walla WA   6529 T-MOBILE USA, INC. 676   2021-04-12   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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