Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 430 [Rate centres in NPA 430] [Dial plan for NPA 430]

NXX: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-278 A Texarkana TX TXRKTXXAZMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 554      
430-278 0 Texarkana TX   073H TELNYX LLC 554   2021-04-09   
430-278 1 Texarkana TX   939H COMMIO, LLC 554   2021-08-30   
430-278 2 Texarkana TX   624H ONVOY SPECTRUM, LLC 554   2021-05-24   
430-278 3 Texarkana TX   939H COMMIO, LLC 554   2021-08-30   
430-278 4 Texarkana TX   6529 T-MOBILE USA, INC. 554   2022-01-26   
430-278 5 Texarkana TX   939H COMMIO, LLC 554   2021-08-30   
430-278 6 Texarkana TX   939H COMMIO, LLC 554   2021-08-30   
430-278 7 Texarkana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 554   2020-11-13   
430-278 8 Texarkana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 554   2020-11-13   
430-278 9 Texarkana TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 554   2020-11-13   

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

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