Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 525E ONVOY, LLC - TN

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
423-818 4 Jellico TN KNVLTNMA49Z  474   2021-10-25   
423-818 6 Jellico TN KNVLTNMA49Z  474   2021-07-30   
423-818 7 Jellico TN KNVLTNMA49Z  474   2021-03-04   
423-818 9 Jellico TN KNVLTNMA49Z  474   2020-12-21   
423-819 4 Cleveland TN CHTGTNNSXKY  472   2023-09-09   
423-819 5 Cleveland TN CHTGTNNSXKY  472   2023-09-09   
423-819 6 Cleveland TN CHTGTNNSXKY  472   2023-09-09   
423-820 A Greeneville TN JHCYTNXCXPX  956      
423-820 0 Greeneville TN JHCYTNXCXPX  956   2019-06-06   
423-820 1 Greeneville TN JHCYTNXCXPX  956   2019-06-06   
423-820 2 Greeneville TN JHCYTNXCXPX  956   2021-07-10   
423-820 3 Greeneville TN JHCYTNXCXPX  956   2021-07-10   
423-820 4 Greeneville TN JHCYTNXCXPX  956   2022-12-27   
423-820 8 Greeneville TN JHCYTNXCXPX  956   2018-06-16   
423-824 A Erwin TN JHCYTNXCXPX  956      
423-824 2 Erwin TN JHCYTNXCXPX  956   2023-10-14   
423-825 8 Chattanooga TN CHTGTNNSXKY  472   2019-06-23   
423-830 A Kingsport TN JHCYTNXCXPX  956      
423-830 0 Kingsport TN JHCYTNXCXPX  956   2019-01-11   
423-830 1 Kingsport TN JHCYTNXCXPX  956   2019-01-11   
423-830 2 Kingsport TN JHCYTNXCXPX  956   2021-10-23   
423-830 4 Kingsport TN JHCYTNXCXPX  956   2021-07-10   
423-830 5 Kingsport TN JHCYTNXCXPX  956   2021-07-10   
423-830 6 Kingsport TN JHCYTNXCXPX  956   2023-08-11   
423-830 7 Kingsport TN JHCYTNXCXPX  956   2023-08-11   
423-830 8 Kingsport TN JHCYTNXCXPX  956   2018-06-16   
423-830 9 Kingsport TN JHCYTNXCXPX  956   2019-06-23   
423-831 2 Greeneville TN JHCYTNXCXPX  956   2023-08-11   
423-831 3 Greeneville TN JHCYTNXCXPX  956   2023-08-11   
423-831 4 Greeneville TN JHCYTNXCXPX  956   2023-08-11   
423-831 5 Greeneville TN JHCYTNXCXPX  956   2023-08-11   
423-831 6 Greeneville TN JHCYTNXCXPX  956   2023-08-11   
423-835 1 Bristol TN JHCYTNXCXPX  956   2023-05-21   
423-840 A Butler TN JHCYTNXCXPX  956      
423-840 5 Butler TN JHCYTNXCXPX  956   2021-05-22   
423-840 6 Butler TN JHCYTNXCXPX  956   2021-05-22   
423-840 7 Butler TN JHCYTNXCXPX  956   2019-06-06   
423-840 8 Butler TN JHCYTNXCXPX  956   2018-06-16   
423-840 9 Butler TN JHCYTNXCXPX  956   2019-06-06   
423-841 0 Mountain City TN JHCYTNXCXPX  956   2023-09-09   
423-849 0 Johnson City TN JHCYTNXCXPX  956   2023-09-09   
423-849 1 Johnson City TN JHCYTNXCXPX  956   2023-09-09   
423-850 A Jonesboro TN JHCYTNXCXPX  956      
423-850 0 Jonesboro TN JHCYTNXCXPX  956   2019-06-06   
423-850 1 Jonesboro TN JHCYTNXCXPX  956   2019-06-06   
423-850 5 Jonesboro TN JHCYTNXCXPX  956   2021-10-23   
423-850 7 Jonesboro TN JHCYTNXCXPX  956   2023-08-11   
423-850 8 Jonesboro TN JHCYTNXCXPX  956   2018-06-20   
423-853 4 Johnson City TN JHCYTNXCXPX  956   2022-09-29   
423-853 5 Johnson City TN JHCYTNXCXPX  956   2022-09-29   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.