Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-696 A Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-696 0 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-696 1 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-696 2 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-12-24   
956-696 3 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-696 4 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-12-24   
956-696 5 Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-07-29   
956-696 6 Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-696 7 Rio Grande City TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-696 8 Rio Grande City TX HRLNTXATTMD  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2022-09-01   
956-696 9 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-12   
956-697 A Port Isabel TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-697 0 Port Isabel TX HRLNTXHG8MD  073H TELNYX LLC 568   2021-03-28   
956-697 1 Port Isabel TX   515J IP HORIZON LLC 568   2022-03-31   
956-697 2 Port Isabel TX HRLNTXDU2MD  939H COMMIO, LLC 568   2022-12-12   
956-697 3 Port Isabel TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-697 4 Port Isabel TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-697 5 Port Isabel TX HRLNTXHGXPX  515J IP HORIZON LLC 568   2023-12-28   
956-697 6 Port Isabel TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-06-24   
956-697 7 Port Isabel TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-10-16   
956-697 8 Port Isabel TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-10-16   
956-697 9 Port Isabel TX HRLNTXHGXPX  515J IP HORIZON LLC 568   2023-12-28   
956-698 A Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 0 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 1 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 2 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 3 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 4 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 5 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 6 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 7 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 8 Brownsville TX BWVLTXLIDS0  9533 SOUTHWESTERN BELL 568      
956-698 9 Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2006-06-08   
956-699 A Raymondville TX RMVLTXXBRS0  776A VTX COMMUNICATIONS, LLC 568      
956-701 A Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
956-701 0 Laredo TX SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2013-12-10   
956-701 1 Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2013-12-12   
956-701 2 Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-11-04   
956-701 3 Laredo TX   793K TWC IP ENABLED SERVICES, LLC 566   2014-06-01   
956-701 4 Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-06-27   
956-701 5 Laredo TX SNANTX91X7Y  5562 METROPCS, INC. 566   2014-05-14   
956-701 6 Laredo TX SNANTX91X7Y  5562 METROPCS, INC. 566   2014-05-14   
956-701 7 Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-04-06   
956-701 8 Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-04-06   
956-701 9 Laredo TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2013-12-09   
956-702 A Pharr TX PHRRTXPHDS0  9533 SOUTHWESTERN BELL 568      
956-703 A Edinburg TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568      
956-703 0 Edinburg TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2014-06-27   
956-703 1 Edinburg TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2014-06-27   
956-703 2 Edinburg TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2014-07-13   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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