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: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-403 A Gary TX GARYTXXBPS0  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 554      
903-403 0 Gary TX   073H TELNYX LLC 554   2021-03-18   
903-403 1 Gary TX   903C ONVOY, LLC - TX 554   2018-11-13   
903-403 2 Gary TX   903C ONVOY, LLC - TX 554   2020-08-27   
903-403 3 Gary TX   903C ONVOY, LLC - TX 554   2020-08-27   
903-403 4 Gary TX   903C ONVOY, LLC - TX 554   2022-12-21   
903-403 5 Gary TX   903C ONVOY, LLC - TX 554   2021-03-19   
903-403 6 Gary TX   624H ONVOY SPECTRUM, LLC 554   2021-06-28   
903-403 7 Gary TX   903C ONVOY, LLC - TX 554   2021-09-26   
903-403 8 Gary TX   903C ONVOY, LLC - TX 554   2021-10-28   
903-403 9 Gary TX   1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 554   2015-04-17   

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

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