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: 759

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-759 A Morristown TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-759 0 Morristown TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2022-05-21   
423-759 1 Morristown TN KNVLTNMAYBX  204G TWIN LAKES COMMUNICATIONS, INC. - TN 474   2022-04-07   
423-759 2 Morristown TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2022-01-29   
423-759 3 Morristown TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-11-02   
423-759 4 Morristown TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2022-01-29   
423-759 5 Morristown TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2022-01-29   
423-759 6 Morristown TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2022-01-29   
423-759 7 Morristown TN KNVLTNMAYIX  506J TWILIO INTERNATIONAL, INC. 474   2021-11-03   
423-759 8 Morristown TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2021-11-28   
423-759 9 Morristown TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2021-11-28   

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

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