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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
423-782 7 Kingsport TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-05-05   
423-782 8 Kingsport TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-05-05   
423-782 9 Kingsport TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2007-08-06   
423-783 A Greeneville TN GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-784 A Jellico TN JLLCTNMARS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-785 A Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 0 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 1 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 2 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 3 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 4 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 5 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 6 Chattanooga TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-785 7 Chattanooga TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-785 8 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-785 9 Chattanooga TN   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-786 A Bluff City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-786 0 Bluff City TN   124F BANDWIDTH.COM CLEC, LLC - TN 956   2026-02-14   
423-786 2 Bluff City TN   525E ONVOY, LLC - TN 956   2023-10-14   
423-787 A Greeneville TN GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-788 A Jonesboro TN JNBOTNXARP0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-788 0 Jonesboro TN   4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-788 1 Jonesboro TN   4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-788 2 Jonesboro TN   7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956   2016-04-15   
423-788 3 Jonesboro TN   318J COMCAST IP PHONE, LLC 956   2008-04-05   
423-788 4 Jonesboro TN   124F BANDWIDTH.COM CLEC, LLC - TN 956   2015-09-10   
423-788 5 Jonesboro TN   124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-06-19   
423-788 6 Jonesboro TN   124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-10-08   
423-788 7 Jonesboro TN   4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-788 8 Jonesboro TN   124F BANDWIDTH.COM CLEC, LLC - TN 956   2011-07-04   
423-788 9 Jonesboro TN   318J COMCAST IP PHONE, LLC 956   2015-03-04   
423-789 A Bristol TN BRSTTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-789 0 Bristol TN   4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-789 1 Bristol TN   4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-789 2 Bristol TN   4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-790 A Cleveland TN   792K CHARTER IP ENABLED SERVICES, LLC 472   2025-03-11   
423-790 0 Cleveland TN   792K CHARTER IP ENABLED SERVICES, LLC 472   2006-06-03   
423-790 1 Cleveland TN   792K CHARTER IP ENABLED SERVICES, LLC 472   2006-12-15   
423-790 2 Cleveland TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2007-08-21   
423-790 3 Cleveland TN   7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 472   2007-07-13   
423-790 4 Cleveland TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2007-04-07   
423-790 5 Cleveland TN   792K CHARTER IP ENABLED SERVICES, LLC 472   2007-04-28   
423-790 6 Cleveland TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2007-06-03   
423-790 7 Cleveland TN   792K CHARTER IP ENABLED SERVICES, LLC 472   2007-06-09   
423-790 8 Cleveland TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2007-07-15   
423-790 9 Cleveland TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2007-10-11   
423-791 A Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-791 0 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 1 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 2 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 3 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 4 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 5 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 6 Johnson City TN   8645 SUNCOM DBA T-MOBILE USA 956      
423-791 7 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-07-09   
423-791 8 Johnson City TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-09-05   
423-791 9 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-07-09   
423-792 A Oakdale TN KNVNTNEC8MD  490J DISH WIRELESS, LLC 474   2024-04-26   
423-792 0 Oakdale TN   490J DISH WIRELESS, LLC 474   2024-04-26   
423-792 1 Oakdale TN   792K CHARTER IP ENABLED SERVICES, LLC 474   2025-12-21   
423-792 3 Oakdale TN   318J COMCAST IP PHONE, LLC 474   2024-11-01   
423-793 A Bristol TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-793 0 Bristol TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-793 1 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-03-06   
423-793 2 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-03-06   
423-793 3 Bristol TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2012-11-16   
423-793 4 Bristol TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-793 5 Bristol TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-793 6 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-03-06   
423-793 7 Bristol TN   525E ONVOY, LLC - TN 956   2018-06-16   
423-793 8 Bristol TN   525E ONVOY, LLC - TN 956   2019-06-06   
423-793 9 Bristol TN   525E ONVOY, LLC - TN 956   2019-06-06   
423-794 A Johnson City TN JHCYTNXCYZZ  829J PAETEC ITEL, LLC 956   2024-12-07   
423-794 0 Johnson City TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-11-18   
423-794 1 Johnson City TN   829J PAETEC ITEL, LLC 956      
423-794 2 Johnson City TN   829J PAETEC ITEL, LLC 956      
423-794 3 Johnson City TN   829J PAETEC ITEL, LLC 956      
423-794 4 Johnson City TN   829J PAETEC ITEL, LLC 956      
423-794 5 Johnson City TN   829J PAETEC ITEL, LLC 956      
423-794 6 Johnson City TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-11-18   
423-794 7 Johnson City TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-11-18   
423-794 8 Johnson City TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2003-11-18   
423-794 9 Johnson City TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-07-22   
423-795 A Johnson City TN JHCYTNXCXNX  6630 USA MOBILITY WIRELESS, INC. 956      
423-796 A Johnson City TN JHCYTNXCXSY  490J DISH WIRELESS, LLC 956      
423-796 0 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-796 1 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-796 2 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-796 3 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-28   
423-796 4 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-28   
423-796 5 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-04-15   
423-796 6 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-04-15   
423-796 7 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-04-15   
423-796 8 Johnson City TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2023-04-15   
423-796 9 Johnson City TN   490J DISH WIRELESS, LLC 956   2022-04-07   
423-797 A Bristol TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-797 0 Bristol TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-797 1 Bristol TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-797 2 Bristol TN   318J COMCAST IP PHONE, LLC 956   2008-04-05   
423-797 3 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2021-03-06   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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