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: 943

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-943 A Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 0 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 1 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 2 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 3 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 4 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 5 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 6 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 7 Port Isabel TX PTISTXPIRS0  9533 SOUTHWESTERN BELL 568      
956-943 9 Port Isabel TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2012-11-24   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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