Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-600 A Rice TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-600 0 Rice TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-08-29   
903-600 1 Rice TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-04-24   
903-600 2 Rice TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-22   
903-600 3 Rice TX   903C ONVOY, LLC - TX 552   2012-07-06   
903-600 4 Rice TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-22   
903-600 5 Rice TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-04-10   
903-600 6 Rice TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2015-05-22   
903-600 7 Rice TX   508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-15   
903-600 8 Rice TX   903C ONVOY, LLC - TX 552   2012-12-13   
903-600 9 Rice TX   903C ONVOY, LLC - TX 552   2012-12-13   

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

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