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: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-407 A Auburn WA   6529 T-MOBILE USA, INC. 674   2024-04-14   
253-407 0 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 1 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 2 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 3 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 4 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 5 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 6 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 7 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 8 Auburn WA   6529 T-MOBILE USA, INC. 674      
253-407 9 Auburn WA   6529 T-MOBILE USA, INC. 674      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.