Local Calling Guide

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NPA: 281 [Rate centres in NPA 281] [Dial plan for NPA 281]

NXX: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
281-721 A Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-721 0 Houston Suburban TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-10-10   
281-721 1 Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-721 2 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2018-11-29   
281-721 3 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-01-05   
281-721 4 Houston Suburban TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2018-12-06   
281-721 5 Houston Suburban TX HSTOTXRWDS5  327E YMAX COMMUNICATIONS CORP. - TX 560   2009-02-11   
281-721 6 Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-721 7 Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-721 8 Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-721 9 Houston Suburban TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-02-24   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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