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: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-855 A McAllen TX HRLNTXHGXNX  965H FRACTEL, LLC 568      
956-855 0 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2021-08-23   
956-855 1 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2021-08-23   
956-855 2 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2021-08-23   
956-855 3 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2021-08-23   
956-855 4 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2022-01-12   
956-855 5 McAllen TX HRLNTXHGXNX  965H FRACTEL, LLC 568   2021-07-12   
956-855 6 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-12-24   
956-855 7 McAllen TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-12-24   
956-855 8 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2022-01-12   
956-855 9 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2021-08-23   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.