Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-200 A Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-200 4 Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-201 A La Follette TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-201 4 La Follette TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-254 5 Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2008-05-20   
423-259 2 New Tazewell TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2010-07-06   
423-259 8 New Tazewell TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2014-07-18   
423-264 6 Vonore TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2020-10-18   
423-271 3 Sweetwater TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2012-03-16   
423-345 7 Surgoinsville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2014-05-06   
423-353 9 Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2013-07-20   
423-372 A Jellico TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-372 0 Jellico TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-381 8 Athens TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2011-04-08   
423-393 2 Bulls Gap TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2008-05-20   
423-415 4 Newport TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2011-07-01   
423-435 A Athens TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-435 0 Athens TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-435 9 Athens TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2012-09-07   
423-436 A Madisonville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-436 0 Madisonville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-437 A La Follette TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-437 0 La Follette TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-438 A Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-438 0 Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-438 1 Morristown TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2006-10-09   
423-453 A Athens TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-453 4 Athens TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-455 A Jellico TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-455 0 Jellico TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2004-11-15   
423-465 4 Newport TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2006-11-01   
423-500 9 Rogersville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2018-08-26   
423-536 6 Sweetwater TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2004-11-15   
423-545 A Madisonville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-545 4 Madisonville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-546 A Bulls Gap TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-546 0 Bulls Gap TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2005-12-10   
423-546 4 Bulls Gap TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-577 8 Oneida TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2021-10-03   
423-632 7 Wartburg TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2021-10-03   
423-781 0 Etowah TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2004-11-15   
423-973 A Sneedville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-973 3 Sneedville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2011-08-19   
423-973 4 Sneedville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
606-268 7 Jellico KY 4369 LEVEL 3 COMMUNICATIONS, LLC - KY 474   2014-05-06   
865-219 2 Knoxville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2012-11-16   
865-223 5 Knoxville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2006-07-10   
865-223 6 Knoxville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2006-07-10   
865-224 7 Kingston TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2012-11-29   
865-225 6 Mascot TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2003-08-26   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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