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: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-283 A Lometa TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-283 0 Lometa TX AUSTTXGR42Z  073H TELNYX LLC 558   2021-03-19   
737-283 1 Lometa TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-04   
737-283 2 Lometa TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-07   
737-283 3 Lometa TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-03-07   
737-283 4 Lometa TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-08-15   
737-283 5 Lometa TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-12-04   
737-283 6 Lometa TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2021-09-23   
737-283 7 Lometa TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-05-14   
737-283 8 Lometa TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-283 9 Lometa TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-26   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.