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: 264

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-264 A Vonore TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474      
423-264 0 Vonore TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2011-09-04   
423-264 1 Vonore TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-04-20   
423-264 2 Vonore TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2019-12-19   
423-264 3 Vonore TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2020-06-19   
423-264 4 Vonore TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2020-06-19   
423-264 5 Vonore TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-04-20   
423-264 6 Vonore TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2020-10-18   
423-264 7 Vonore TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-10-25   
423-264 8 Vonore TN MRTWTN281MD  792K CHARTER IP ENABLED SERVICES, LLC 474   2023-05-10   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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