Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 253 [Rate centres in NPA 253] [Dial plan for NPA 253]

NXX: 367

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-367 A Graham WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
253-367 0 Graham WA   483E ONVOY, LLC - WA 674   2022-09-04   
253-367 1 Graham WA   159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2022-06-25   
253-367 2 Graham WA   483E ONVOY, LLC - WA 674   2021-11-04   
253-367 3 Graham WA   483E ONVOY, LLC - WA 674   2021-11-04   
253-367 4 Graham WA   483E ONVOY, LLC - WA 674   2021-11-04   
253-367 5 Graham WA   197D VONAGE AMERICA LLC 674   2021-10-21   
253-367 6 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2022-02-24   
253-367 7 Graham WA   483E ONVOY, LLC - WA 674   2022-02-19   
253-367 8 Graham WA   483E ONVOY, LLC - WA 674   2022-02-19   
253-367 9 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2021-10-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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