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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-849 7 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-07-09   
423-849 8 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-07-09   
423-849 9 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-07-09   
423-850 A Jonesboro TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-850 0 Jonesboro TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   
423-850 1 Jonesboro TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2019-06-06   
423-850 2 Jonesboro TN JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-12-11   
423-850 3 Jonesboro TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2021-01-29   
423-850 4 Jonesboro TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2021-08-13   
423-850 5 Jonesboro TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2021-10-23   
423-850 6 Jonesboro TN JHCYTNXCXRX  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 956   2019-08-12   
423-850 7 Jonesboro TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-08-11   
423-850 8 Jonesboro TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2018-06-20   
423-850 9 Jonesboro TN JHCYTNXCXAY  073H TELNYX LLC 956   2021-01-23   
423-851 A New Tazewell TN NWTZTNXADS1  0557 BRIGHTSPEED OF EASTERN TENNESSEE, LLC 474      
423-852 A Dunlap TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-852 7 Dunlap TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2023-08-08   
423-853 A Johnson City TN JHCYTNXCXMY  506J TWILIO INTERNATIONAL, INC. 956      
423-853 0 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-853 1 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-853 2 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-853 3 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-853 4 Johnson City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-09-29   
423-853 5 Johnson City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2022-09-29   
423-853 6 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-853 7 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-853 8 Johnson City TN JHCYTNXCXMY  506J TWILIO INTERNATIONAL, INC. 956   2022-03-25   
423-853 9 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-854 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-855 A Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-856 A Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-856 0 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2016-12-01   
423-856 1 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2017-12-03   
423-856 2 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2017-12-03   
423-856 3 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2018-10-10   
423-856 4 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2018-10-10   
423-856 5 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2018-10-10   
423-856 6 Athens TN KNVNTNEC0MD  073H TELNYX LLC 474   2017-03-30   
423-856 7 Athens TN KNVLTNIIDS0  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 474   2017-06-05   
423-856 8 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2016-11-14   
423-856 9 Athens TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2016-11-14   
423-857 A Kingsport TN KGPTTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-858 A Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-858 0 Blountville TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956   2024-03-28   
423-858 1 Blountville TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956   2024-03-28   
423-858 2 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-10-14   
423-858 3 Blountville TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-10-14   
423-858 5 Blountville TN   145J TERRA NOVA TELECOM INC. 956   2025-10-06   
423-858 8 Blountville TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956   2024-03-28   
423-859 A Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-859 0 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2024-02-05   
423-859 1 Rogersville TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2026-03-10   
423-859 2 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2023-08-04   
423-859 3 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2025-06-19   
423-860 A Chattanooga TN CHTGTN12X2Y  939H COMMIO, LLC 472      
423-860 0 Chattanooga TN CHTGTN12X2Y  939H COMMIO, LLC 472   2022-09-03   
423-860 1 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 2 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 3 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 4 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 5 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 6 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 7 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 8 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-860 9 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-11-12   
423-862 A Spring City TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-862 0 Spring City TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-862 1 Spring City TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-862 2 Spring City TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2023-10-21   
423-862 8 Spring City TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-862 9 Spring City TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-10-22   
423-863 A Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-863 0 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2006-10-09   
423-863 1 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-03-01   
423-863 2 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-03-01   
423-863 3 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-12-05   
423-863 4 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-03-12   
423-863 5 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-05-13   
423-863 6 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-07-15   
423-863 7 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-12-08   
423-863 8 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2006-06-11   
423-863 9 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2006-07-03   
423-864 A Decatur TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472      
423-864 0 Decatur TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2023-09-09   
423-864 4 Decatur TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-08-28   
423-864 5 Decatur TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-08-28   
423-864 6 Decatur TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2023-07-22   
423-864 7 Decatur TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-08-28   
423-864 8 Decatur TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-08-28   
423-864 9 Decatur TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-08-28   
423-866 A Niota TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474      
423-866 0 Niota TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2023-09-22   
423-866 1 Niota TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2023-09-21   
423-866 6 Niota TN   145J TERRA NOVA TELECOM INC. 474   2025-08-08   
423-867 A Chattanooga TN CHTGTNRODS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-868 A Mosheim TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-868 0 Mosheim TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2024-03-05   
423-868 1 Mosheim TN BUVLTNAX0MD  792K CHARTER IP ENABLED SERVICES, LLC 956   2025-11-16   
423-868 2 Mosheim TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2023-10-23   
423-868 8 Mosheim TN   145J TERRA NOVA TELECOM INC. 956   2025-10-06   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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