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: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-501 A Sumner WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-501 1 Sumner WA   145J TERRA NOVA TELECOM INC. 674   2025-07-27   
253-501 2 Sumner WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-501 3 Sumner WA   159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2021-04-24   
253-501 5 Sumner WA   145J TERRA NOVA TELECOM INC. 674   2024-11-13   
253-501 6 Sumner WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2014-11-08   
253-501 7 Sumner WA   483E ONVOY, LLC - WA 674   2014-09-11   
253-501 8 Sumner WA   937F ASTOUND BROADBAND, LLC - WA 674   2018-04-13   

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

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