Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 430 [Rate centres in NPA 430] [Dial plan for NPA 430]

NXX: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-230 A Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554      
430-230 0 Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554   2017-06-23   
430-230 1 Avery TX LGVWTXPLXZX  073H TELNYX LLC 554   2021-03-07   
430-230 2 Avery TX TXRKTXXAHMD  624H ONVOY SPECTRUM, LLC 554   2020-07-08   
430-230 3 Avery TX TXRKTXXAHMD  624H ONVOY SPECTRUM, LLC 554   2020-07-08   
430-230 4 Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554   2020-08-27   
430-230 5 Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554   2020-08-27   
430-230 6 Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554   2021-02-20   
430-230 7 Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554   2021-02-20   
430-230 8 Avery TX TXRKTXXANMD  903C ONVOY, LLC - TX 554   2021-03-19   
430-230 9 Avery TX LGVWTXPLXRX  318C CEBRIDGE TELECOM TX , L.P. - TX 554   2024-04-12   

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

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