Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 945 [Rate centres in NPA 945] [Dial plan for NPA 945]

NXX: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
945-428 A Plano TX   903C ONVOY, LLC - TX 552   2026-04-11   
945-428 0 Plano TX   903C ONVOY, LLC - TX 552   2026-04-11   
945-428 9 Plano TX   903C ONVOY, LLC - TX 552   2026-04-13   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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