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: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-870 A Kennewick WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676      
509-870 0 Kennewick WA SPKNWA01XDY  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2020-09-25   
509-870 1 Kennewick WA SPKNWADZ4MD  939H COMMIO, LLC 676   2021-08-31   
509-870 3 Kennewick WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2021-02-05   
509-870 4 Kennewick WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2021-02-05   
509-870 5 Kennewick WA SPKNWADZ4MD  939H COMMIO, LLC 676   2021-08-31   
509-870 6 Kennewick WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2021-02-15   
509-870 7 Kennewick WA KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676   2020-12-02   
509-870 8 Kennewick WA KNWCWAXA1MD  6529 T-MOBILE USA, INC. 676   2020-12-02   
509-870 9 Kennewick WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2021-07-08   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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