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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-421 A Auburn WA   6529 T-MOBILE USA, INC. 674   2025-05-03   
253-421 0 Auburn WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-05-10   
253-421 1 Auburn WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-06-23   
253-421 2 Auburn WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-07-23   
253-421 7 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-05-03   
253-421 8 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-05-03   
253-421 9 Auburn WA   6529 T-MOBILE USA, INC. 674   2025-05-03   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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