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: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-778 A Trinidad TX TRNDTXXARS1  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
903-778 0 Trinidad TX TRNDTXXARS1  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
903-778 1 Trinidad TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-02-08   
903-778 2 Trinidad TX TRNDTXXARS1  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
903-778 3 Trinidad TX TRNDTXXARS1  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
903-778 4 Trinidad TX TRNDTXXARS1  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      
903-778 5 Trinidad TX ATHNTXXALMD  318C CEBRIDGE TELECOM TX , L.P. - TX 552   2014-02-28   
903-778 7 Trinidad TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-16   
903-778 8 Trinidad TX ATHNTXXATMD  903C ONVOY, LLC - TX 552   2018-09-16   
903-778 9 Trinidad TX TRNDTXXARS1  2084 BRIGHTSPEED OF EASTERN TEXAS, INC. 552      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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