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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-406 A Graham WA TACMWAFA2MD  6529 T-MOBILE USA, INC. 674   2024-03-04   
253-406 0 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2025-02-10   
253-406 1 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2025-02-10   
253-406 4 Graham WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2024-12-26   
253-406 5 Graham WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2024-09-21   
253-406 6 Graham WA TACMWAFA2MD  6529 T-MOBILE USA, INC. 674   2024-04-06   
253-406 7 Graham WA TACMWAFA2MD  6529 T-MOBILE USA, INC. 674   2024-04-06   
253-406 8 Graham WA TACMWAFA2MD  6529 T-MOBILE USA, INC. 674   2024-04-06   
253-406 9 Graham WA TACMWAFA2MD  6529 T-MOBILE USA, INC. 674   2024-03-04   

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

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