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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 696

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-696 A Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-696 0 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-696 1 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-696 2 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-12-24   
956-696 3 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-696 4 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-12-24   
956-696 5 Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-07-29   
956-696 6 Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-696 7 Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-696 8 Rio Grande City TX HRLNTXATTMD  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2022-09-01   
956-696 9 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.