Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 525E ONVOY, LLC - TN

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
423-423 2 Limestone TN   956   2026-01-23   
423-423 3 Limestone TN   956   2026-01-23   
423-423 4 Limestone TN   956   2026-01-23   
423-423 7 Limestone TN   956   2026-01-23   
423-423 9 Limestone TN   956   2026-01-23   
423-427 A Johnson City TN JHCYTNXCXPX  956      
423-427 2 Johnson City TN JHCYTNXCXPX  956   2019-03-05   
423-427 3 Johnson City TN JHCYTNXCXPX  956   2019-03-05   
423-427 4 Johnson City TN JHCYTNXCXPX  956   2018-05-04   
423-427 6 Johnson City TN JHCYTNXCXPX  956   2018-09-13   
423-427 7 Johnson City TN JHCYTNXCXPX  956   2018-09-13   
423-436 5 Madisonville TN KNVLTNMA49Z  474   2016-06-09   
423-436 7 Madisonville TN KNVLTNMA49Z  474   2016-04-18   
423-436 8 Madisonville TN KNVLTNMA49Z  474   2016-04-18   
423-436 9 Madisonville TN KNVLTNMA49Z  474   2016-06-09   
423-437 3 La Follette TN KNVLTNMA49Z  474   2008-06-21   
423-437 9 La Follette TN KNVLTNMA49Z  474   2021-12-02   
423-441 1 Cumberland Gap TN LXTNKYXAX2Z  466   2021-03-15   
423-441 4 Cumberland Gap TN LXTNKYXAX2Z  466   2019-08-29   
423-441 6 Cumberland Gap TN LXTNKYXAX2Z  466   2021-07-11   
423-441 7 Cumberland Gap TN LXTNKYXAX2Z  466   2021-07-11   
423-445 0 Surgoinsville TN KNVLTNMA49Z  474   2016-04-03   
423-445 1 Surgoinsville TN KNVLTNMA49Z  474   2016-04-03   
423-445 4 Surgoinsville TN KNVLTNMA49Z  474   2016-05-26   
423-445 7 Surgoinsville TN KNVLTNMA49Z  474   2018-03-31   
423-451 5 Soddy Daisy TN CHTGTNNSXKY  472   2022-09-29   
423-451 8 Soddy Daisy TN CHTGTNNSXKY  472   2018-03-05   
423-454 2 Decatur TN CHTGTNNSXKY  472   2016-03-30   
423-454 3 Decatur TN CHTGTNNSXKY  472   2016-03-30   
423-455 2 Jellico TN KNVLTNMA49Z  474   2016-06-09   
423-455 5 Jellico TN KNVLTNMA49Z  474   2016-06-09   
423-455 6 Jellico TN KNVLTNMA49Z  474   2021-03-19   
423-455 8 Jellico TN KNVLTNMA49Z  474   2016-03-30   
423-455 9 Jellico TN KNVLTNMA49Z  474   2016-03-30   
423-456 2 La Follette TN KNVLTNMA49Z  474   2021-10-25   
423-456 3 La Follette TN KNVLTNMA49Z  474   2019-10-30   
423-456 4 La Follette TN KNVLTNMA49Z  474   2021-07-30   
423-456 5 La Follette TN KNVLTNMA49Z  474   2021-03-19   
423-456 7 La Follette TN KNVLTNMA49Z  474   2021-03-04   
423-456 8 La Follette TN KNVLTNMA49Z  474   2022-04-11   
423-456 9 La Follette TN KNVLTNMA49Z  474   2020-12-21   
423-458 3 Cleveland TN CHTGTNNSXKY  472   2013-07-19   
423-460 8 Mountain City TN JHCYTNXCXPX  956   2019-06-06   
423-460 9 Mountain City TN JHCYTNXCXPX  956   2019-06-06   
423-465 3 Newport TN KNVLTNMA49Z  474   2006-04-20   
423-466 4 Athens TN KNVLTNMA49Z  474   2021-06-18   
423-466 5 Athens TN KNVLTNMA49Z  474   2021-01-11   
423-468 A Chattanooga TN CHTGTNNSXKY  472      
423-468 2 Chattanooga TN CHTGTNNSXKY  472   2006-06-27   
423-468 5 Chattanooga TN CHTGTNNSXKY  472   2006-12-17   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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