Local Calling Guide
Area code/prefix search
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 423-760
| 9 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-761
| A |
Copper Basin |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-761
| 0 |
Copper Basin |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
2006-09-22 |
|
| 423-761
| 1 |
Copper Basin |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2016-03-28 |
|
| 423-761
| 2 |
Copper Basin |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2016-03-28 |
|
| 423-761
| 3 |
Copper Basin |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2019-04-26 |
|
| 423-761
| 4 |
Copper Basin |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2016-07-23 |
|
| 423-761
| 5 |
Copper Basin |
TN |
CHTGTNMAXVX |
516C AT&T CORP. |
472 |
|
2013-02-22 |
|
| 423-761
| 6 |
Copper Basin |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2016-12-29 |
|
| 423-761
| 7 |
Copper Basin |
TN |
|
114J EXIANT COMMUNICATIONS LLC |
472 |
|
2026-10-30 |
|
| 423-761
| 8 |
Copper Basin |
TN |
|
145J TERRA NOVA TELECOM INC. |
472 |
|
2025-11-22 |
|
| 423-761
| 9 |
Copper Basin |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2025-09-08 |
|
| 423-762
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-762
| 0 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-762
| 1 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-762
| 2 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-762
| 3 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2004-11-01 |
|
| 423-762
| 4 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2004-11-01 |
|
| 423-762
| 5 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2004-11-01 |
|
| 423-762
| 6 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2004-11-01 |
|
| 423-762
| 7 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2004-11-06 |
|
| 423-762
| 8 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2004-11-06 |
|
| 423-762
| 9 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-763
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-763
| 0 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-763
| 1 |
Chattanooga |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2014-08-30 |
|
| 423-763
| 2 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-763
| 3 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2014-09-22 |
|
| 423-763
| 4 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-763
| 5 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-763
| 6 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-763
| 7 |
Chattanooga |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2010-06-19 |
|
| 423-763
| 8 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-763
| 9 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-764
| A |
Bristol |
TN |
BRSTTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-765
| A |
Kingsport |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
|
|
| 423-765
| 0 |
Kingsport |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2005-01-23 |
|
| 423-765
| 1 |
Kingsport |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2006-02-26 |
|
| 423-765
| 2 |
Kingsport |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2006-07-21 |
|
| 423-765
| 3 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-02-03 |
|
| 423-765
| 4 |
Kingsport |
TN |
JHCYTNXCX3X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
956 |
|
2007-08-10 |
|
| 423-765
| 5 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-09-24 |
|
| 423-765
| 6 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-11-04 |
|
| 423-765
| 7 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2008-01-26 |
|
| 423-765
| 8 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-04-07 |
|
| 423-765
| 9 |
Kingsport |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2007-05-21 |
|
| 423-766
| A |
Limestone |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-766
| 0 |
Limestone |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2025-04-03 |
|
| 423-766
| 1 |
Limestone |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2022-02-08 |
|
| 423-766
| 2 |
Limestone |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2023-02-24 |
|
<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 >>
Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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