Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 713 [Rate centres in NPA 713] [Dial plan for NPA 713]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-597 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
713-597 0 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-05-04   
713-597 1 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-05-04   
713-597 2 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 3 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 4 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 5 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 6 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 7 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 8 Houston TX   903C ONVOY, LLC - TX 560   2014-03-08   
713-597 9 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-05-04   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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