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
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 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 |
|
| 423-979
| 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 |
|
|
|
| 423-979
| 3 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 4 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 5 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 6 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 7 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-979
| 8 |
Johnson City |
TN |
GTCYVA02AMD |
008A MOUNTAINET TELEPHONE COMPANY - TN |
956 |
|
2004-01-30 |
|
| 423-979
| 9 |
Johnson City |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2021-09-05 |
|
| 423-980
| A |
Chattanooga |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-980
| 0 |
Chattanooga |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-05-30 |
|
| 423-980
| 1 |
Chattanooga |
TN |
CHTGTN12X2Y |
939H COMMIO, LLC |
472 |
|
2024-02-08 |
|
| 423-980
| 2 |
Chattanooga |
TN |
CHTGTN12X2Y |
939H COMMIO, LLC |
472 |
|
2024-02-08 |
|
| 423-980
| 3 |
Chattanooga |
TN |
CHTGTN12X2Y |
939H COMMIO, LLC |
472 |
|
2024-02-08 |
|
| 423-980
| 4 |
Chattanooga |
TN |
CHTGTNNSXYZ |
478J NUSO, LLC |
472 |
|
2024-11-24 |
|
| 423-980
| 7 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2021-07-17 |
|
| 423-980
| 9 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2021-07-17 |
|
| 423-987
| A |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-989
| A |
Bristol |
TN |
BRSTTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-990
| A |
Bristol |
TN |
BRSTTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-991
| A |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-994
| A |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-994
| 0 |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2007-07-01 |
|
| 423-994
| 1 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
2007-09-01 |
|
| 423-994
| 2 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2009-02-05 |
|
| 423-994
| 3 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2009-05-08 |
|
| 423-994
| 4 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2009-05-08 |
|
| 423-994
| 5 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2009-05-08 |
|
| 423-994
| 6 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
2007-09-01 |
|
| 423-994
| 7 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2009-05-08 |
|
| 423-994
| 8 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2009-05-08 |
|
| 423-994
| 9 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
2007-09-01 |
|
| 423-998
| A |
Jellico |
TN |
KNVOTNTN0MD |
939H COMMIO, LLC |
474 |
|
|
|
| 423-998
| 6 |
Jellico |
TN |
KNVOTNTN0MD |
939H COMMIO, LLC |
474 |
|
2022-12-10 |
|
| 423-998
| 7 |
Jellico |
TN |
KNVOTNTN0MD |
939H COMMIO, LLC |
474 |
|
2022-12-10 |
|
| 423-998
| 8 |
Jellico |
TN |
KNVOTNTN0MD |
939H COMMIO, LLC |
474 |
|
2022-12-10 |
|
| 423-998
| 9 |
Jellico |
TN |
KNVOTNTN0MD |
939H COMMIO, LLC |
474 |
|
2022-12-10 |
|
| 423-999
| A |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
|
|
| 423-999
| 0 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2011-05-14 |
|
| 423-999
| 1 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2011-05-27 |
|
| 423-999
| 2 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2011-05-27 |
|
| 423-999
| 3 |
Athens |
TN |
KNVNTNEC5MD |
145J TERRA NOVA TELECOM INC. |
474 |
|
2024-02-05 |
|
| 423-999
| 5 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2013-03-21 |
|
| 423-999
| 6 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2013-05-12 |
|
| 423-999
| 7 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2013-09-27 |
|
| 423-999
| 8 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2013-10-28 |
|
| 423-999
| 9 |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2011-05-14 |
|
<< 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
Last updated: Wed, 18 Jun 2025 02:30:00 UTC
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