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 |
| 423-722
| 8 |
Johnson City |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-722
| 9 |
Johnson City |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-723
| A |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-723
| 0 |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-723
| 1 |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-723
| 2 |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-723
| 3 |
Kingsport |
TN |
JHCYTNXCX2Y |
5562 METROPCS, INC. |
956 |
|
2006-11-15 |
|
| 423-723
| 4 |
Kingsport |
TN |
JHCYTNXCX2Y |
5562 METROPCS, INC. |
956 |
|
2006-12-06 |
|
| 423-723
| 5 |
Kingsport |
TN |
JHCYTNXCX2Y |
5562 METROPCS, INC. |
956 |
|
2007-01-19 |
|
| 423-723
| 6 |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-723
| 7 |
Kingsport |
TN |
JHCYTNXCX2Y |
5562 METROPCS, INC. |
956 |
|
2007-01-19 |
|
| 423-723
| 8 |
Kingsport |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2012-03-24 |
|
| 423-723
| 9 |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2007-05-26 |
|
| 423-724
| A |
Sneedville |
TN |
KNVLTNMAYAY |
829J PAETEC ITEL, LLC |
474 |
|
2024-12-07 |
|
| 423-724
| 3 |
Sneedville |
TN |
KNVNTNEC6MD |
516J TON80 COMMUNICATIONS, LLC |
474 |
|
2022-03-26 |
|
| 423-724
| 4 |
Sneedville |
TN |
KNVLTNMAYAY |
829J PAETEC ITEL, LLC |
474 |
|
|
|
| 423-724
| 5 |
Sneedville |
TN |
KNVLTNMAYAY |
829J PAETEC ITEL, LLC |
474 |
|
|
|
| 423-724
| 6 |
Sneedville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
| 423-724
| 7 |
Sneedville |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2010-03-04 |
|
| 423-724
| 8 |
Sneedville |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2012-06-22 |
|
| 423-724
| 9 |
Sneedville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
| 423-725
| A |
Hampton |
TN |
HMPNTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-726
| A |
Midway (Sullivan) |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-726
| 1 |
Midway (Sullivan) |
TN |
JHCYTNXCXAY |
073H TELNYX LLC |
956 |
|
2021-01-23 |
|
| 423-726
| 2 |
Midway (Sullivan) |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2005-01-23 |
|
| 423-726
| 3 |
Midway (Sullivan) |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2021-02-17 |
|
| 423-726
| 5 |
Midway (Sullivan) |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2021-02-17 |
|
| 423-726
| 6 |
Midway (Sullivan) |
TN |
JHCYTNXCXRX |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
956 |
|
2021-03-09 |
|
| 423-726
| 7 |
Midway (Sullivan) |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2021-02-17 |
|
| 423-726
| 9 |
Midway (Sullivan) |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-09-16 |
|
| 423-727
| A |
Mountain City |
TN |
MTCYTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-728
| A |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 0 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 1 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 2 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 3 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 4 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 5 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 6 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 7 |
Cleveland |
TN |
CLEVTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-728
| 8 |
Cleveland |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2015-06-19 |
|
| 423-728
| 9 |
Cleveland |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2015-06-19 |
|
| 423-729
| A |
Fall Creek Falls |
TN |
CLEVTNDL1MD |
792K CHARTER IP ENABLED SERVICES, LLC |
472 |
|
2025-03-11 |
|
| 423-729
| 1 |
Fall Creek Falls |
TN |
CLEVTNDL1MD |
792K CHARTER IP ENABLED SERVICES, LLC |
472 |
|
2024-11-10 |
|
| 423-730
| A |
Riceville |
TN |
KNVLTNMAYHX |
318J COMCAST IP PHONE, LLC |
474 |
|
|
|
| 423-730
| 0 |
Riceville |
TN |
KNVLTNMAYHX |
318J COMCAST IP PHONE, LLC |
474 |
|
2007-04-12 |
|
| 423-730
| 1 |
Riceville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2021-04-20 |
|
| 423-730
| 2 |
Riceville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2021-04-20 |
|
| 423-730
| 3 |
Riceville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2019-12-19 |
|
| 423-730
| 5 |
Riceville |
TN |
MRTWTN281MD |
792K CHARTER IP ENABLED SERVICES, LLC |
474 |
|
2023-06-11 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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