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 |
| 423-969
| 0 |
Cleveland |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2025-08-31 |
|
| 423-969
| 1 |
Cleveland |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2025-08-31 |
|
| 423-969
| 2 |
Cleveland |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2025-09-06 |
|
| 423-969
| 3 |
Cleveland |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2025-11-07 |
|
| 423-969
| 4 |
Cleveland |
TN |
CHTGTN12X8X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
472 |
|
2026-02-06 |
|
| 423-969
| 5 |
Cleveland |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2026-06-06 |
|
| 423-969
| 6 |
Cleveland |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2026-01-17 |
|
| 423-969
| 7 |
Cleveland |
TN |
|
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2026-09-14 |
|
| 423-969
| 8 |
Cleveland |
TN |
|
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2026-09-14 |
|
| 423-969
| 9 |
Cleveland |
TN |
|
145J TERRA NOVA TELECOM INC. |
472 |
|
2025-11-22 |
|
| 423-972
| A |
Greeneville |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-972
| 0 |
Greeneville |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-972
| 1 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2005-09-09 |
|
| 423-972
| 2 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2005-12-05 |
|
| 423-972
| 3 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2006-03-10 |
|
| 423-972
| 4 |
Greeneville |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2005-02-26 |
|
| 423-972
| 5 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2006-06-11 |
|
| 423-972
| 6 |
Greeneville |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
2006-06-22 |
|
| 423-972
| 7 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2006-09-04 |
|
| 423-972
| 8 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2006-11-16 |
|
| 423-972
| 9 |
Greeneville |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-973
| A |
Sneedville |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-973
| 0 |
Sneedville |
TN |
KNVLTNMAYKX |
515J IP HORIZON LLC |
474 |
|
2016-03-25 |
|
| 423-973
| 1 |
Sneedville |
TN |
KNVLTNIIAMD |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
474 |
|
2015-08-18 |
|
| 423-973
| 2 |
Sneedville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-03-28 |
|
| 423-973
| 3 |
Sneedville |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
2011-08-19 |
|
| 423-973
| 4 |
Sneedville |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-973
| 5 |
Sneedville |
TN |
KNVLTNMA84Z |
516C AT&T CORP. |
474 |
|
2011-11-02 |
|
| 423-973
| 8 |
Sneedville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-03-28 |
|
| 423-973
| 9 |
Sneedville |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2016-09-17 |
|
| 423-975
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-977
| A |
Chattanooga |
TN |
CHTGTNNSXPZ |
965H FRACTEL, LLC |
472 |
|
|
|
| 423-977
| 0 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2021-07-17 |
|
| 423-977
| 1 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2021-07-17 |
|
| 423-977
| 2 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2020-03-07 |
|
| 423-977
| 5 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2020-05-04 |
|
| 423-977
| 6 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2020-05-04 |
|
| 423-977
| 7 |
Chattanooga |
TN |
CHTGTNNSXPZ |
965H FRACTEL, LLC |
472 |
|
2019-09-18 |
|
| 423-977
| 9 |
Chattanooga |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2024-12-02 |
|
| 423-978
| A |
Chattanooga |
TN |
CHTGTN12XOY |
700J WAVENATION, LLC |
472 |
|
2025-09-06 |
|
| 423-978
| 0 |
Chattanooga |
TN |
CHTGTN12XOY |
700J WAVENATION, LLC |
472 |
|
2025-09-06 |
|
| 423-978
| 1 |
Chattanooga |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2026-06-07 |
|
| 423-978
| 2 |
Chattanooga |
TN |
|
073H TELNYX LLC |
472 |
|
2026-10-01 |
|
| 423-978
| 7 |
Chattanooga |
TN |
|
845C INTRADO COMMUNICATIONS, LLC |
472 |
|
2026-10-09 |
|
| 423-978
| 8 |
Chattanooga |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2026-05-02 |
|
| 423-978
| 9 |
Chattanooga |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2026-05-02 |
|
| 423-979
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 0 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 1 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 2 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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