Local Calling Guide
Area code/prefix search
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 |
| 423-827
| 8 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2006-09-04 |
|
| 423-827
| 9 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2006-09-04 |
|
| 423-829
| A |
Charleston |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-829
| 0 |
Charleston |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-829
| 1 |
Charleston |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2014-07-12 |
|
| 423-829
| 2 |
Charleston |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
2012-02-26 |
|
| 423-829
| 3 |
Charleston |
TN |
CHTGTNNS04Z |
829J PAETEC ITEL, LLC |
472 |
|
2004-09-06 |
|
| 423-829
| 4 |
Charleston |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
2003-06-01 |
|
| 423-829
| 5 |
Charleston |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-829
| 6 |
Charleston |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-829
| 7 |
Charleston |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-829
| 8 |
Charleston |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
2023-12-11 |
|
| 423-829
| 9 |
Charleston |
TN |
CHTGTNNSXMZ |
624H ONVOY SPECTRUM, LLC |
472 |
|
2023-06-17 |
|
| 423-830
| A |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-830
| 0 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2019-01-11 |
|
| 423-830
| 1 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2019-01-11 |
|
| 423-830
| 2 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2021-10-23 |
|
| 423-830
| 3 |
Kingsport |
TN |
JHCYTNXCX3X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
956 |
|
2019-02-14 |
|
| 423-830
| 4 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2021-07-10 |
|
| 423-830
| 5 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2021-07-10 |
|
| 423-830
| 6 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-830
| 7 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-830
| 8 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2018-06-16 |
|
| 423-830
| 9 |
Kingsport |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2019-06-23 |
|
| 423-831
| A |
Greeneville |
TN |
JHCYTNXCXXY |
732J NUSO, LLC |
956 |
|
|
|
| 423-831
| 0 |
Greeneville |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2026-06-06 |
|
| 423-831
| 1 |
Greeneville |
TN |
JHCYTNXCXXY |
732J NUSO, LLC |
956 |
|
2023-04-23 |
|
| 423-831
| 2 |
Greeneville |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-831
| 3 |
Greeneville |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-831
| 4 |
Greeneville |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-831
| 5 |
Greeneville |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-831
| 6 |
Greeneville |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-08-11 |
|
| 423-831
| 7 |
Greeneville |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2026-02-02 |
|
| 423-831
| 8 |
Greeneville |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2024-11-22 |
|
| 423-831
| 9 |
Greeneville |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2024-05-25 |
|
| 423-832
| A |
Clinchport |
TN |
KNVNTNEC6MD |
516J TON80 COMMUNICATIONS, LLC |
244 |
|
|
|
| 423-832
| 4 |
Clinchport |
TN |
KNVNTNEC6MD |
516J TON80 COMMUNICATIONS, LLC |
244 |
|
2022-03-16 |
|
| 423-833
| A |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-833
| 0 |
Johnson City |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2018-01-07 |
|
| 423-833
| 1 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2003-10-29 |
|
| 423-833
| 2 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2003-10-29 |
|
| 423-833
| 3 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2003-10-29 |
|
| 423-833
| 4 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2003-10-29 |
|
| 423-833
| 5 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2003-10-29 |
|
| 423-833
| 6 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2003-10-29 |
|
| 423-833
| 7 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-07-15 |
|
| 423-833
| 8 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-11-04 |
|
| 423-833
| 9 |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2011-02-16 |
|
| 423-834
| A |
Chattanooga |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-834
| 0 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2005-10-08 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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