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: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-666 A Jefferson TX JFSNTXMORS0  9533 SOUTHWESTERN BELL 554      
903-666 0 Jefferson TX JFSNTXMORS0  9533 SOUTHWESTERN BELL 554      
903-666 1 Jefferson TX JFSNTXMORS0  9533 SOUTHWESTERN BELL 554      
903-666 2 Jefferson TX TXRKTXXAHMD  624H ONVOY SPECTRUM, LLC 554   2021-12-04   
903-666 3 Jefferson TX TXRKTXXAHMD  624H ONVOY SPECTRUM, LLC 554   2021-12-29   
903-666 4 Jefferson TX LGVWTXPLXEX  903C ONVOY, LLC - TX 554   2014-12-26   
903-666 5 Jefferson TX LGVWTXPLXEX  903C ONVOY, LLC - TX 554   2020-08-28   
903-666 6 Jefferson TX LGVWTXPLXEX  903C ONVOY, LLC - TX 554   2020-08-28   
903-666 7 Jefferson TX TXRKTXXAHMD  624H ONVOY SPECTRUM, LLC 554   2021-06-28   
903-666 8 Jefferson TX   515J IP HORIZON LLC 554   2021-06-05   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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