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: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-422 A Auburn WA   6529 T-MOBILE USA, INC. 674   2025-07-27   
253-422 5 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-07-27   
253-422 6 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-07-27   
253-422 7 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-07-27   
253-422 8 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-07-27   
253-422 9 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-07-27   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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