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: 737

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-737 A Zapata TX HRLNTXHGXUX  516J TON80 COMMUNICATIONS, LLC 568      
956-737 0 Zapata TX MCALTXHBDS0  4866 SMARTCOM TELEPHONE, LLC 568   2022-07-30   
956-737 1 Zapata TX HRLNTXDU2MD  939H COMMIO, LLC 568   2022-12-12   
956-737 7 Zapata TX HRLNTXHGXUX  516J TON80 COMMUNICATIONS, LLC 568   2022-06-05   
956-737 8 Zapata TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-04-05   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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