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: 820

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-820 A Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-820 0 Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   
423-820 1 Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   
423-820 2 Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-820 3 Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-07-10   
423-820 4 Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-12-27   
423-820 8 Greeneville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-06-16   
423-820 9 Greeneville TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-03-25   

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

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