Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
423-202 3 Johnson City TN BUVLTNAX0MD  956   2005-01-23   
423-202 7 Johnson City TN BUVLTNAX0MD  956   2006-04-19   
423-212 0 Blountville TN BUVLTNAX0MD  956   2005-01-23   
423-212 2 Blountville TN BUVLTNAX0MD  956   2006-12-10   
423-213 5 Elizabethton TN BUVLTNAX0MD  956   2005-01-28   
423-217 0 Bristol TN BUVLTNAX0MD  956   2005-01-23   
423-217 1 Bristol TN BUVLTNAX0MD  956   2006-04-16   
423-220 5 Erwin TN   956   2025-11-16   
423-228 4 South Pittsburg TN   472   2006-09-11   
423-237 6 Newport TN MRTWTN281MD  474   2005-05-23   
423-256 2 Church Hill TN BUVLTNAX0MD  956   2005-01-23   
423-256 3 Church Hill TN BUVLTNAX0MD  956   2006-12-10   
423-262 8 Johnson City TN BUVLTNAX0MD  956   2007-02-19   
423-264 8 Vonore TN MRTWTN281MD  474   2023-05-10   
423-268 2 Johnson City TN BUVLTNAX0MD  956   2013-03-17   
423-271 6 Sweetwater TN MRTWTN281MD  474   2012-05-31   
423-278 7 Greeneville TN   956   2025-11-16   
423-281 A Butler TN BUVLTNAX0MD  956      
423-281 1 Butler TN BUVLTNAX0MD  956   2011-12-16   
423-285 5 Dayton TN   472   2006-06-03   
423-293 0 Rogersville TN MRTWTN281MD  474   2005-05-23   
423-293 3 Rogersville TN MRTWTN281MD  474   2008-02-20   
423-297 1 Elizabethton TN BUVLTNAX0MD  956   2006-11-10   
423-328 9 Johnson City TN BUVLTNAX0MD  956   2014-05-12   
423-343 9 Kingsport TN BUVLTNAX0MD  956   2008-04-18   
423-349 8 Sullivan Gardens TN BUVLTNAX0MD  956   2005-01-23   
423-353 4 Morristown TN MRTWTN281MD  474   2013-03-08   
423-382 4 Sneedville TN   474   2025-11-16   
423-390 1 Kingsport TN BUVLTNAX0MD  956   2014-02-11   
423-391 7 Bluff City TN BUVLTNAX0MD  956   2005-01-23   
423-391 8 Bluff City TN BUVLTNAX0MD  956   2011-10-23   
423-393 A Bulls Gap TN MRTWTN281MD  474   2025-01-23   
423-393 1 Bulls Gap TN MRTWTN281MD  474   2005-05-23   
423-398 5 Kingsport TN BUVLTNAX0MD  956   2011-09-10   
423-401 5 Soddy Daisy TN   472   2025-12-26   
423-406 1 Midway (Sullivan) TN BUVLTNAX0MD  956   2008-05-18   
423-428 9 Dayton TN   472   2008-03-08   
423-446 5 Fall Branch TN BUVLTNAX0MD  956   2017-07-08   
423-454 0 Decatur TN   472   2006-06-03   
423-458 1 Cleveland TN   472   2012-08-27   
423-458 4 Cleveland TN   472   2013-09-20   
423-460 1 Mountain City TN BUVLTNAX0MD  956   2011-09-01   
423-460 3 Mountain City TN BUVLTNAX0MD  956   2014-09-13   
423-461 0 Johnson City TN BUVLTNAX0MD  956   2016-09-10   
423-473 3 Cleveland TN   472   2015-05-03   
423-481 1 Roan Mountain TN BUVLTNAX0MD  956   2014-06-28   
423-512 9 Stoney Creek TN BUVLTNAX0MD  956   2005-01-23   
423-518 1 Elizabethton TN BUVLTNAX0MD  956   2013-04-04   
423-518 4 Elizabethton TN BUVLTNAX0MD  956   2018-07-08   
423-530 7 Kingsport TN BUVLTNAX0MD  956   2015-06-12   
423-532 8 Newport TN MRTWTN281MD  474   2007-01-21   
423-545 8 Madisonville TN MRTWTN281MD  474   2012-05-31   
423-545 9 Madisonville TN MRTWTN281MD  474   2005-11-27   
423-568 9 Niota TN MRTWTN281MD  474   2023-09-10   
423-584 6 Cleveland TN   472   2008-09-22   
423-606 1 Englewood TN MRTWTN281MD  474   2023-04-02   
423-631 A Johnson City TN BUVLTNAX0MD  956      
423-631 0 Johnson City TN BUVLTNAX0MD  956   2008-05-23   
423-658 8 Whitwell TN   472   2006-09-11   
423-659 2 Copper Basin TN   472   2026-02-22   
423-665 3 Charleston TN   472   2006-06-03   
423-691 1 Athens TN MRTWTN281MD  474   2023-08-27   
423-722 3 Johnson City TN BUVLTNAX0MD  956   2015-07-01   
423-726 2 Midway (Sullivan) TN BUVLTNAX0MD  956   2005-01-23   
423-729 A Fall Creek Falls TN   472   2025-03-11   
423-729 1 Fall Creek Falls TN   472   2024-11-10   
423-730 5 Riceville TN MRTWTN281MD  474   2023-06-11   
423-732 7 Kingsport TN BUVLTNAX0MD  956   2016-07-01   
423-765 A Kingsport TN BUVLTNAX0MD  956      
423-765 0 Kingsport TN BUVLTNAX0MD  956   2005-01-23   
423-765 1 Kingsport TN BUVLTNAX0MD  956   2006-02-26   
423-765 2 Kingsport TN BUVLTNAX0MD  956   2006-07-21   
423-765 9 Kingsport TN BUVLTNAX0MD  956   2007-05-21   
423-769 1 Benton TN   472   2022-05-08   
423-790 A Cleveland TN   472   2025-03-11   
423-790 0 Cleveland TN   472   2006-06-03   
423-790 1 Cleveland TN   472   2006-12-15   
423-790 5 Cleveland TN   472   2007-04-28   
423-790 7 Cleveland TN   472   2007-06-09   
423-792 1 Oakdale TN   474   2025-12-21   
423-797 4 Bristol TN BUVLTNAX0MD  956   2012-08-08   
423-797 5 Bristol TN BUVLTNAX0MD  956   2018-09-18   
423-799 7 Spring City TN   472   2023-04-19   
423-806 1 Midway (Washington) TN BUVLTNAX0MD  956   2020-09-18   
423-808 1 Tellico Plains TN MRTWTN281MD  474   2023-07-05   
423-813 7 Cleveland TN   472   2016-03-14   
423-833 0 Johnson City TN BUVLTNAX0MD  956   2018-01-07   
423-836 9 Sweetwater TN MRTWTN281MD  474   2005-11-27   
423-838 6 Chattanooga TN   472   2006-06-03   
423-839 A Morristown TN MRTWTN281MD  474   2025-01-23   
423-839 0 Morristown TN MRTWTN281MD  474   2005-07-23   
423-839 1 Morristown TN MRTWTN281MD  474   2006-04-07   
423-839 2 Morristown TN MRTWTN281MD  474   2007-05-21   
423-868 1 Mosheim TN   956   2025-11-16   
423-932 1 Etowah TN MRTWTN281MD  474   2023-02-19   
423-939 0 Jasper TN   472   2006-09-11   
423-945 A College Station TN   472   2025-12-21   
423-945 1 College Station TN   472   2025-12-21   
423-957 4 Hampton TN   956   2025-11-16   
423-961 9 Georgetown TN   472   2006-06-03   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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