Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 688

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-688 A McAllen TX MCALTXMUDS0  9533 SOUTHWESTERN BELL 568      
956-688 0 McAllen TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2007-01-09   
956-688 1 McAllen TX   9533 SOUTHWESTERN BELL 568      
956-688 2 McAllen TX   9533 SOUTHWESTERN BELL 568      
956-688 3 McAllen TX   9533 SOUTHWESTERN BELL 568      
956-688 4 McAllen TX   9533 SOUTHWESTERN BELL 568      
956-688 5 McAllen TX   9533 SOUTHWESTERN BELL 568      
956-688 6 McAllen TX   9533 SOUTHWESTERN BELL 568      
956-688 7 McAllen TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2007-03-04   
956-688 8 McAllen TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2007-05-23   
956-688 9 McAllen TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2014-10-23   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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