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: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-770 A Church Hill TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-770 0 Church Hill TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-03-15   
423-770 1 Church Hill TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-03-15   
423-770 2 Church Hill TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2023-04-27   
423-770 3 Church Hill TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-09-09   
423-770 4 Church Hill TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2021-05-27   
423-770 7 Church Hill TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-09-21   
423-770 8 Church Hill TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-09-21   
423-770 9 Church Hill TN JHCYTNXCXAY  073H TELNYX LLC 956   2022-06-22   

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

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