Local Calling Guide

Area code/prefix search

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NPA: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-301 A Tyler TX   903C ONVOY, LLC - TX 554   2025-04-20   
903-301 0 Tyler TX   903C ONVOY, LLC - TX 554      
903-301 4 Tyler TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 554   2025-10-21   
903-301 5 Tyler TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 554   2025-10-21   

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

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