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
423-401 0 Soddy Daisy TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 472   2015-05-30   
423-401 1 Soddy Daisy TN CHTGTNKF0MD  8356 US LEC OF TENNESSEE, INC. 472      
423-401 2 Soddy Daisy TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2016-03-28   
423-401 3 Soddy Daisy TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-401 4 Soddy Daisy TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-401 5 Soddy Daisy TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-401 6 Soddy Daisy TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2020-03-28   
423-401 7 Soddy Daisy TN CHTGTNNSXRZ  318J COMCAST IP PHONE, LLC 472   2012-03-09   
423-401 8 Soddy Daisy TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2011-01-10   
423-401 9 Soddy Daisy TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2016-03-28   
423-402 A Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-402 0 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2008-08-30   
423-402 1 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2009-04-05   
423-402 2 Chattanooga TN CHTGTNKF0MD  8356 US LEC OF TENNESSEE, INC. 472   2009-04-21   
423-402 3 Chattanooga TN CHTGTNKF0MD  8356 US LEC OF TENNESSEE, INC. 472   2009-04-21   
423-402 4 Chattanooga TN CHTGTNKF0MD  8356 US LEC OF TENNESSEE, INC. 472   2009-04-21   
423-402 5 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2009-07-02   
423-402 6 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2009-07-02   
423-402 7 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2009-07-02   
423-402 8 Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2010-01-08   
423-402 9 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2010-01-29   
423-403 A South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-403 0 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2017-07-02   
423-403 1 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2017-07-02   
423-403 2 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-08-03   
423-403 3 South Pittsburg TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2018-03-08   
423-403 4 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-08-03   
423-403 5 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-09-21   
423-403 6 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-09-21   
423-403 7 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-10-19   
423-403 8 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-10-19   
423-403 9 South Pittsburg TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-10-19   
423-404 A Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-404 0 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2007-09-17   
423-404 1 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2008-07-11   
423-404 2 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2006-08-19   
423-404 3 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-404 4 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-404 5 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-404 6 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2008-12-06   
423-404 8 Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-404 9 Madisonville TN KNVLTNMAY8X  624H ONVOY SPECTRUM, LLC 474   2023-06-17   
423-405 A Athens TN   7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-405 0 Athens TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2011-09-17   
423-405 1 Athens TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-03-14   
423-405 2 Athens TN   7476 POWERTEL NASHVILLE LICENSES, INC. 474   2011-12-01   
423-405 3 Athens TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2015-03-06   
423-405 4 Athens TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2014-10-19   
423-405 5 Athens TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2014-07-08   
423-405 6 Athens TN KNVLTNMA54Z  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 474   2014-02-14   

<< 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: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.