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: 395

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-395 A Rio Hondo TX HRLNTXATYMD  516C AT&T CORP. 568      
956-395 0 Rio Hondo TX   776A VTX COMMUNICATIONS, LLC 568   2016-06-06   
956-395 1 Rio Hondo TX   903C ONVOY, LLC - TX 568   2017-05-03   
956-395 2 Rio Hondo TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-395 3 Rio Hondo TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-395 4 Rio Hondo TX   903C ONVOY, LLC - TX 568   2021-02-03   
956-395 5 Rio Hondo TX   516C AT&T CORP. 568   2011-09-12   
956-395 6 Rio Hondo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2018-06-11   
956-395 7 Rio Hondo TX   508J CENTURYLINK COMMUNICATIONS, LLC 568   2016-06-08   
956-395 8 Rio Hondo TX   903C ONVOY, LLC - TX 568   2021-02-03   
956-395 9 Rio Hondo TX   515J IP HORIZON LLC 568   2023-12-28   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.