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.

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

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-693 6 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2007-04-24   
423-693 7 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2007-04-24   
423-693 8 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2007-04-24   
423-693 9 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2007-04-24   
423-694 A Sweetwater TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-694 0 Sweetwater TN KNVNTNEC2MD  939H COMMIO, LLC 474   2022-11-28   
423-694 1 Sweetwater TN KNVLTNMAY8X  624H ONVOY SPECTRUM, LLC 474   2023-06-17   
423-694 6 Sweetwater TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2022-12-28   
423-694 7 Sweetwater TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2022-12-28   
423-694 8 Sweetwater TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2022-12-28   
423-694 9 Sweetwater TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2021-10-23   
423-695 A Erwin TN ERWNTNXAW00  8945 NA COMMUNICATIONS, INC. 956      
423-696 A Rogersville TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-696 0 Rogersville TN KNVLTNMAYBX  204G TWIN LAKES COMMUNICATIONS, INC. - TN 474   2022-04-07   
423-696 1 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2022-04-17   
423-696 3 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-11-19   
423-696 4 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2022-01-29   
423-696 5 Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2022-04-17   
423-696 6 Rogersville TN KNVNTNEC6MD  516J TON80 COMMUNICATIONS, LLC 474   2022-04-04   
423-696 7 Rogersville TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2021-10-31   
423-696 8 Rogersville TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2021-10-31   
423-696 9 Rogersville TN KNVLTNMA96Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2021-10-31   
423-697 A Chattanooga TN CHTGTNDTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-698 A Chattanooga TN CHTGTNDTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-699 A Mountain City TN MTCYTN01W00  8945 NA COMMUNICATIONS, INC. 956      
423-701 A Robbins TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-701 0 Robbins TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474   2014-03-30   
423-701 1 Robbins TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474   2016-04-01   
423-701 2 Robbins TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2024-06-13   
423-702 A Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-702 0 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2010-04-04   
423-702 1 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2010-04-04   
423-702 2 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2012-08-24   
423-702 3 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2009-12-17   
423-702 4 Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2011-12-31   
423-702 5 Chattanooga TN CHTGTNNSXRZ  318J COMCAST IP PHONE, LLC 472   2007-10-17   
423-702 6 Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2006-04-07   
423-702 7 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2007-06-08   
423-702 8 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2007-06-08   
423-702 9 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2008-11-03   
423-703 A Coker Creek TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-703 0 Coker Creek TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2023-09-18   
423-703 2 Coker Creek TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-04-11   
423-703 3 Coker Creek TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-04-11   
423-703 4 Coker Creek TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2020-01-23   
423-703 9 Coker Creek TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2023-01-07   
423-704 A Chattanooga TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-704 0 Chattanooga TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-704 1 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2012-06-18   
423-704 2 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2012-06-18   
423-704 3 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2012-06-18   
423-704 4 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2012-06-18   
423-704 5 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2012-06-18   
423-704 6 Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2012-06-18   
423-704 7 Chattanooga TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-704 8 Chattanooga TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-704 9 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2019-06-23   
423-705 A Johnson City TN JHCYTNXCXRY  478J NUSO, LLC 956      
423-705 0 Johnson City TN JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-10-23   
423-705 1 Johnson City TN JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-10-23   
423-705 2 Johnson City TN JHCYTNXCXRY  478J NUSO, LLC 956   2022-02-03   
423-705 3 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-03-17   
423-705 4 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-03-17   
423-705 5 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2022-12-10   
423-705 6 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-705 7 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-705 8 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-705 9 Johnson City TN JHCYTNXCXPY  624H ONVOY SPECTRUM, LLC 956   2022-08-15   
423-707 A Elizabethton TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-707 0 Elizabethton TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2010-02-11   
423-707 1 Elizabethton TN JHCYTNXCX8Y  939H COMMIO, LLC 956   2022-10-23   
423-707 2 Elizabethton TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-10-08   
423-707 3 Elizabethton TN JHCYTNXCX3X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956   2010-08-16   
423-707 4 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2010-10-18   
423-707 5 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2010-10-18   
423-707 6 Elizabethton TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2011-07-04   
423-707 7 Elizabethton TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2011-08-20   
423-707 8 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2014-11-18   
423-707 9 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-08-07   
423-708 A Chattanooga TN CHTGTNNSXCZ  5562 METROPCS, INC. 472      
423-708 0 Chattanooga TN CHTGTNNSXCZ  5562 METROPCS, INC. 472   2014-12-22   
423-708 1 Chattanooga TN CHTGTNNSXCZ  5562 METROPCS, INC. 472   2014-12-22   
423-708 2 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2015-01-16   
423-708 3 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2015-01-16   
423-708 4 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2015-01-16   
423-708 5 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2015-01-16   
423-708 6 Chattanooga TN CHTGTN12X8X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 472   2015-02-17   
423-708 7 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2015-03-07   
423-708 8 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2015-03-07   
423-708 9 Chattanooga TN CHTGTNNSXCZ  5562 METROPCS, INC. 472   2014-11-29   
423-709 A Cleveland TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472   2024-12-05   
423-709 0 Cleveland TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472      
423-709 1 Cleveland TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472      
423-709 2 Cleveland TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472      
423-709 4 Cleveland TN CHTGTNNSXYZ  478J NUSO, LLC 472   2024-12-06   
423-709 5 Cleveland TN CHTGTNNSXYZ  478J NUSO, LLC 472   2024-12-06   
423-709 6 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2024-12-24   
423-709 7 Cleveland TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472      
423-709 8 Cleveland TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2005-02-10   
423-709 9 Cleveland TN CHTGTN78DS0  2757 CENTURYLINK COMMUNICATIONS LLC - TN 472   2003-08-18   

<< 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.