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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-297 A Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-297 0 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 1 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 2 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 3 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 4 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 5 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 6 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 7 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 8 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   
737-297 9 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-10-09   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.