Local Calling Guide

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NPA: 713 [Rate centres in NPA 713] [Dial plan for NPA 713]

NXX: 581

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-581 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
713-581 0 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2008-05-08   
713-581 1 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2008-05-09   
713-581 2 Houston TX   829J PAETEC ITEL, LLC 560   2009-10-03   
713-581 3 Houston TX   903C ONVOY, LLC - TX 560   2009-12-18   
713-581 4 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2008-06-04   
713-581 5 Houston TX   624H ONVOY SPECTRUM, LLC 560   2022-05-22   
713-581 6 Houston TX   903C ONVOY, LLC - TX 560   2008-07-05   
713-581 7 Houston TX   903C ONVOY, LLC - TX 560   2008-07-05   
713-581 8 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2008-07-18   
713-581 9 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2009-03-07   

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

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