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 |
| 423-403
| 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 |
KNVLTNMA96Z |
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 |
KNVLTNMA96Z |
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 |
|
| 423-405
| 7 |
Athens |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2014-12-01 |
|
| 423-405
| 8 |
Athens |
TN |
KNVLTNIIAMD |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
474 |
|
2014-12-18 |
|
| 423-405
| 9 |
Athens |
TN |
KNVLTNMA96Z |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
2011-05-28 |
|
| 423-406
| A |
Midway (Sullivan) |
TN |
JHCYTNXCXHY |
318J COMCAST IP PHONE, LLC |
956 |
|
|
|
| 423-406
| 0 |
Midway (Sullivan) |
TN |
JHCYTNXCXHY |
318J COMCAST IP PHONE, LLC |
956 |
|
2008-05-17 |
|
| 423-406
| 1 |
Midway (Sullivan) |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2008-05-18 |
|
| 423-406
| 2 |
Midway (Sullivan) |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2010-09-09 |
|
| 423-406
| 3 |
Midway (Sullivan) |
TN |
JHCYTNXCX3X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
956 |
|
2010-06-10 |
|
| 423-406
| 4 |
Midway (Sullivan) |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2015-06-13 |
|
| 423-406
| 5 |
Midway (Sullivan) |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2016-08-26 |
|
| 423-406
| 6 |
Midway (Sullivan) |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2018-06-09 |
|
| 423-406
| 7 |
Midway (Sullivan) |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2025-10-10 |
|
| 423-406
| 8 |
Midway (Sullivan) |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2018-08-25 |
|
| 423-406
| 9 |
Midway (Sullivan) |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2019-01-11 |
|
| 423-407
| A |
Spring City |
TN |
CHTGTNNSXGZ |
204G TWIN LAKES COMMUNICATIONS, INC. - TN |
472 |
|
|
|
| 423-407
| 0 |
Spring City |
TN |
CHTGTNNSXJZ |
073H TELNYX LLC |
472 |
|
2021-01-23 |
|
| 423-407
| 1 |
Spring City |
TN |
CHTGTNNSXGZ |
204G TWIN LAKES COMMUNICATIONS, INC. - TN |
472 |
|
2020-03-13 |
|
| 423-407
| 2 |
Spring City |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-07-11 |
|
| 423-407
| 3 |
Spring City |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-07-11 |
|
| 423-407
| 5 |
Spring City |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-10-24 |
|
| 423-407
| 6 |
Spring City |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
2022-01-10 |
|
| 423-407
| 7 |
Spring City |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-03-15 |
|
| 423-407
| 8 |
Spring City |
TN |
CHTITNCDDS0 |
4645 ELECTRIC POWER BOARD OF CHATTANOOGA |
472 |
|
2020-03-14 |
|
| 423-407
| 9 |
Spring City |
TN |
CHTGTNNSXMZ |
624H ONVOY SPECTRUM, LLC |
472 |
|
2023-06-17 |
|
| 423-408
| A |
Kingsport |
TN |
JHCYTNXCXRX |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
956 |
|
|
|
| 423-408
| 0 |
Kingsport |
TN |
JHCYTNXCX2Y |
5562 METROPCS, INC. |
956 |
|
2010-03-31 |
|
| 423-408
| 1 |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2010-04-29 |
|
| 423-408
| 2 |
Kingsport |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2010-09-06 |
|
| 423-408
| 3 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2011-01-19 |
|
| 423-408
| 4 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2011-01-19 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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