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 |
| 423-259
| 8 |
New Tazewell |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
2014-07-18 |
|
| 423-259
| 9 |
New Tazewell |
TN |
KNVLTNMAY8X |
624H ONVOY SPECTRUM, LLC |
474 |
|
2023-06-17 |
|
| 423-260
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-260
| 0 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-10-13 |
|
| 423-260
| 1 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-10-13 |
|
| 423-260
| 2 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-10-15 |
|
| 423-260
| 3 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-10-15 |
|
| 423-260
| 4 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-10-15 |
|
| 423-260
| 5 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-11-04 |
|
| 423-260
| 6 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2008-06-28 |
|
| 423-260
| 7 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2008-09-15 |
|
| 423-260
| 8 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2008-09-15 |
|
| 423-260
| 9 |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2007-10-13 |
|
| 423-261
| A |
Coker Creek |
TN |
CKCKTNXARP0 |
0578 TELLICO TEL. CO., INC. |
474 |
|
|
|
| 423-261
| 0 |
Coker Creek |
TN |
CKCKTNXARP0 |
0578 TELLICO TEL. CO., INC. |
474 |
|
|
|
| 423-261
| 2 |
Coker Creek |
TN |
CKCKTNXARP0 |
0578 TELLICO TEL. CO., INC. |
474 |
|
|
|
| 423-261
| 4 |
Coker Creek |
TN |
KNVLTNMA31Z |
6278 UNITED STATES CELLULAR - TN |
474 |
|
|
|
| 423-261
| 5 |
Coker Creek |
TN |
KNVLTNMA31Z |
6278 UNITED STATES CELLULAR - TN |
474 |
|
|
|
| 423-261
| 7 |
Coker Creek |
TN |
CKCKTNXARP0 |
0578 TELLICO TEL. CO., INC. |
474 |
|
|
|
| 423-262
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-262
| 0 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-262
| 1 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-262
| 2 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-262
| 3 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2006-03-02 |
|
| 423-262
| 4 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-262
| 5 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-262
| 6 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2006-03-02 |
|
| 423-262
| 7 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-01-26 |
|
| 423-262
| 8 |
Johnson City |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2007-02-19 |
|
| 423-262
| 9 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-04-16 |
|
| 423-263
| A |
Etowah |
TN |
ETWHTNMTRS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
474 |
|
|
|
| 423-264
| A |
Vonore |
TN |
KNVLTNMAYHX |
318J COMCAST IP PHONE, LLC |
474 |
|
|
|
| 423-264
| 0 |
Vonore |
TN |
KNVLTNMAYHX |
318J COMCAST IP PHONE, LLC |
474 |
|
2011-09-04 |
|
| 423-264
| 1 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2021-04-20 |
|
| 423-264
| 2 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2019-12-19 |
|
| 423-264
| 3 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2020-06-19 |
|
| 423-264
| 4 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2020-06-19 |
|
| 423-264
| 5 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2021-04-20 |
|
| 423-264
| 6 |
Vonore |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
2020-10-18 |
|
| 423-264
| 7 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2021-10-25 |
|
| 423-264
| 8 |
Vonore |
TN |
MRTWTN281MD |
792K CHARTER IP ENABLED SERVICES, LLC |
474 |
|
2023-05-10 |
|
| 423-265
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-266
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-267
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-268
| A |
Johnson City |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
|
|
| 423-268
| 0 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2012-12-13 |
|
| 423-268
| 1 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2013-03-09 |
|
| 423-268
| 2 |
Johnson City |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2013-03-17 |
|
| 423-268
| 3 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2013-04-06 |
|
| 423-268
| 4 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2013-06-20 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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