Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-543 A Bellevue WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
425-543 0 Bellevue WA   159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2022-09-02   
425-543 1 Bellevue WA   159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2022-09-02   
425-543 2 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-10-01   
425-543 3 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-07-29   
425-543 4 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-07-29   
425-543 5 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-07-29   
425-543 6 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-07-29   
425-543 7 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-07-29   
425-543 8 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-07-29   
425-543 9 Bellevue WA   6529 T-MOBILE USA, INC. 674   2022-04-30   

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

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