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: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-436 A Auburn WA   6529 T-MOBILE USA, INC. 674   2026-01-03   
253-436 0 Auburn WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2026-01-05   
253-436 5 Auburn WA   6529 T-MOBILE USA, INC. 674   2026-01-03   
253-436 6 Auburn WA   6529 T-MOBILE USA, INC. 674   2026-01-03   
253-436 7 Auburn WA   6529 T-MOBILE USA, INC. 674   2026-01-03   
253-436 8 Auburn WA   6529 T-MOBILE USA, INC. 674   2026-01-03   
253-436 9 Auburn WA   6529 T-MOBILE USA, INC. 674   2026-01-03   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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