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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-346 A Austin TX AUSTTX92SMD  7551 AUSTIN BESTLINE COMPANY 558      
737-346 0 Austin TX   7551 AUSTIN BESTLINE COMPANY 558   2013-09-13   
737-346 1 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2014-07-20   
737-346 2 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2014-07-20   
737-346 3 Austin TX AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2013-10-03   
737-346 4 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2014-07-20   
737-346 5 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2014-07-20   
737-346 6 Austin TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2015-05-09   
737-346 7 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-10-21   
737-346 8 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-10-30   
737-346 9 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-11-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.