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: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
409-278 A Warren TX BUMTTXTEX8X  903C ONVOY, LLC - TX 562      
409-278 0 Warren TX   939H COMMIO, LLC 562   2023-09-15   
409-278 1 Warren TX   939H COMMIO, LLC 562   2023-09-15   
409-278 2 Warren TX   903C ONVOY, LLC - TX 562   2021-10-09   
409-278 3 Warren TX   939H COMMIO, LLC 562   2023-09-15   
409-278 4 Warren TX   939H COMMIO, LLC 562   2023-09-15   
409-278 5 Warren TX   939H COMMIO, LLC 562   2023-09-15   
409-278 6 Warren TX   624H ONVOY SPECTRUM, LLC 562   2024-03-11   
409-278 7 Warren TX   516C AT&T CORP. 562   2023-07-12   
409-278 8 Warren TX   903C ONVOY, LLC - TX 562   2021-09-04   
409-278 9 Warren TX   318C CEBRIDGE TELECOM TX , L.P. - TX 562   2022-11-01   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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