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: 545

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-545 A Renton WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
425-545 0 Renton WA   6529 T-MOBILE USA, INC. 674   2022-09-11   
425-545 1 Renton WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2022-07-29   
425-545 2 Renton WA   6529 T-MOBILE USA, INC. 674   2022-07-07   
425-545 3 Renton WA   6529 T-MOBILE USA, INC. 674   2022-07-07   
425-545 4 Renton WA   6529 T-MOBILE USA, INC. 674   2022-07-07   
425-545 5 Renton WA   6529 T-MOBILE USA, INC. 674   2022-03-26   
425-545 6 Renton WA   6529 T-MOBILE USA, INC. 674   2022-03-26   
425-545 7 Renton WA   6529 T-MOBILE USA, INC. 674   2022-03-26   
425-545 8 Renton WA   6529 T-MOBILE USA, INC. 674   2022-03-26   
425-545 9 Renton WA   6529 T-MOBILE USA, INC. 674   2022-02-12   

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

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