Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 253 [Rate centres in NPA 253] [Dial plan for NPA 253]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-374 A Auburn WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
253-374 0 Auburn WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
253-374 1 Auburn WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
253-374 2 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      
253-374 3 Auburn WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
253-374 4 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      
253-374 5 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      
253-374 6 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      
253-374 7 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      
253-374 8 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      
253-374 9 Auburn WA STTLWA033MD  6529 T-MOBILE USA, INC. 674      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.