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: 201

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-201 A McAllen TX HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-201 0 McAllen TX HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-201 1 McAllen TX HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-201 2 McAllen TX HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-201 3 McAllen TX HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-201 4 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-05-04   
956-201 5 McAllen TX HRLNTXHG8MD  073H TELNYX LLC 568   2024-04-11   
956-201 6 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   
956-201 7 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   
956-201 8 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   
956-201 9 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.