Local Calling Guide

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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 433

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-433 A Port Isabel TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-433 0 Port Isabel TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2007-03-05   
956-433 1 Port Isabel TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-433 2 Port Isabel TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2014-05-16   
956-433 3 Port Isabel TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2009-02-13   
956-433 4 Port Isabel TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2007-03-01   
956-433 5 Port Isabel TX HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2007-03-27   
956-433 6 Port Isabel TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-433 7 Port Isabel TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-433 8 Port Isabel TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-433 9 Port Isabel TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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