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: 746

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-746 A Bertram TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558      
737-746 0 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-26   
737-746 1 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-12-28   
737-746 4 Bertram TX AUSTTXHOX3X  318C CEBRIDGE TELECOM TX , L.P. - TX 558   2022-11-17   
737-746 6 Bertram TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2022-03-16   
737-746 7 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2022-05-22   
737-746 9 Bertram TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2023-05-28   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.