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: 731

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-731 A McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-731 0 McAllen TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2016-08-18   
956-731 1 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2016-10-31   
956-731 2 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2016-10-31   
956-731 3 McAllen TX HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2017-10-02   
956-731 4 McAllen TX HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2017-12-19   
956-731 5 McAllen TX HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2018-02-26   
956-731 6 McAllen TX HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2018-02-26   
956-731 7 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2017-01-12   
956-731 8 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2017-01-12   
956-731 9 McAllen TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2016-06-13   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.