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: 992

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-992 A McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 0 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 1 McAllen TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568      
956-992 2 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 3 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 4 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 5 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 6 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 7 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 8 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-992 9 McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.