Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 409 [Rate centres in NPA 409] [Dial plan for NPA 409]

NXX: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
409-424 A Galveston TX   903C ONVOY, LLC - TX 560   2025-08-16   
409-424 0 Galveston TX   903C ONVOY, LLC - TX 560   2025-08-16   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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