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: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-712 A Van Alstyne TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-712 0 Van Alstyne TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-712 1 Van Alstyne TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-712 2 Van Alstyne TX DLLSTX97X6X  145J TERRA NOVA TELECOM INC. 552   2026-06-13   
903-712 6 Van Alstyne TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
903-712 7 Van Alstyne TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-712 9 Van Alstyne TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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