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: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-603 A Valley Mills TX   7421 AT&T - LOCAL 556   2025-10-24   
254-603 9 Valley Mills TX   7421 AT&T - LOCAL 556   2025-10-24   

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

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