Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 379

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-379 A Newport TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-379 0 Newport TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2019-10-07   
423-379 1 Newport TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2022-12-16   
423-379 2 Newport TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2019-09-28   
423-379 3 Newport TN KNVLTNMAYIX  506J TWILIO INTERNATIONAL, INC. 474   2021-11-03   
423-379 6 Newport TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2023-09-09   
423-379 7 Newport TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2023-09-09   
423-379 8 Newport TN KNVNTNEC2MD  939H COMMIO, LLC 474   2022-08-12   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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