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: 243

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-243 A Austin TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 558      
737-243 0 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-12-10   
737-243 1 Austin TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2018-10-19   
737-243 2 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-12-10   
737-243 3 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-05-26   
737-243 4 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-05-26   
737-243 5 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-05-26   
737-243 6 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2018-11-19   
737-243 7 Austin TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2018-11-19   
737-243 8 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-10-17   
737-243 9 Austin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2019-10-17   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.