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 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-295 2 Ball Play TN BLPLTNXARP0  0578 TELLICO TEL. CO., INC. 474      
423-295 4 Ball Play TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-295 5 Ball Play TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-295 7 Ball Play TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2020-06-19   
423-295 8 Ball Play TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2020-06-19   
423-295 9 Ball Play TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2019-12-19   
423-296 A Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 0 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 1 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 2 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 4 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 5 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 6 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 7 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 8 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-296 9 Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-297 A Elizabethton TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-297 0 Elizabethton TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956   2007-04-11   
423-297 1 Elizabethton TN BUVLTNAXPS1  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 956   2006-11-10   
423-297 2 Elizabethton TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2008-07-17   
423-297 3 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-12-13   
423-297 4 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2008-10-04   
423-297 5 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-09-05   
423-297 6 Elizabethton TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2008-12-19   
423-297 7 Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-10-21   
423-297 8 Elizabethton TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2008-04-05   
423-297 9 Elizabethton TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-298 A Chattanooga TN CHTGTNMATMD  7421 AT&T - LOCAL 472      
423-298 0 Chattanooga TN CHTGTNOXZMD  5562 METROPCS, INC. 472   2014-12-07   
423-298 1 Chattanooga TN CHTGTNOXZMD  5562 METROPCS, INC. 472   2003-12-08   
423-298 2 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2004-11-06   
423-298 3 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2004-11-06   
423-298 4 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2004-11-06   
423-298 5 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2005-01-01   
423-298 6 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2005-01-01   
423-298 7 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2005-01-01   
423-298 8 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2005-01-01   
423-298 9 Chattanooga TN CHTGTNMATMD  7421 AT&T - LOCAL 472      
423-299 A Benton TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-299 0 Benton TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2004-11-15   
423-299 1 Benton TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2017-03-26   
423-299 2 Benton TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2009-07-23   
423-299 3 Benton TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2010-03-04   
423-299 4 Benton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2017-04-24   
423-299 5 Benton TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2008-11-28   
423-299 6 Benton TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2017-03-26   
423-299 7 Benton TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-10   
423-299 8 Benton TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-10   
423-299 9 Benton TN CHTGTNNSXRZ  318J COMCAST IP PHONE, LLC 472   2007-04-15   
423-300 A Sneedville TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      

<< 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 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.