Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 254 [Rate centres in NPA 254] [Dial plan for NPA 254]

NXX: 476

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-476 A Heidenheimer TX WACOTX01XIX  903C ONVOY, LLC - TX 556      
254-476 4 Heidenheimer TX WACOTX01XIX  903C ONVOY, LLC - TX 556   2021-10-22   
254-476 6 Heidenheimer TX WACOTX01XIX  903C ONVOY, LLC - TX 556   2021-09-20   
254-476 7 Heidenheimer TX WACOTX01XIX  903C ONVOY, LLC - TX 556   2021-09-20   

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

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