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.
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Switch: MCALTXHIRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-843 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 1 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 2 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 3 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 4 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 5 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 6 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 7 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 8 McAllen TX 9533 SOUTHWESTERN BELL 568      
956-843 9 McAllen TX 9533 SOUTHWESTERN BELL 568      

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

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