Local Calling Guide
Area code/prefix search
NPA: 423
[Rate centres in NPA 423]
[Dial plan for NPA 423]
Block: A
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 423-404
| A |
Madisonville |
TN |
KNVLTNJHGT0 |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
474 |
|
|
|
| 423-405
| A |
Athens |
TN |
KNVLTNWHX6X |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
|
|
| 423-406
| A |
Midway (Sullivan) |
TN |
JHCYTNXCXHY |
318J COMCAST IP PHONE, LLC |
956 |
|
|
|
| 423-407
| A |
Spring City |
TN |
CHTGTNNSXGZ |
204G TWIN LAKES COMMUNICATIONS, INC. - TN |
472 |
|
|
|
| 423-408
| A |
Kingsport |
TN |
JHCYTNXCXRX |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
956 |
|
|
|
| 423-409
| A |
Bulls Gap |
TN |
KNVLTNMA78Z |
6630 USA MOBILITY WIRELESS, INC. |
474 |
|
|
|
| 423-410
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-412
| A |
Johnson City |
TN |
JHCYTNXCXNX |
6630 USA MOBILITY WIRELESS, INC. |
956 |
|
|
|
| 423-413
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-414
| A |
Chattanooga |
TN |
CHTHTNPWDS0 |
967F PEACE COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-415
| A |
Newport |
TN |
KNVLTNIIAMD |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
474 |
|
|
|
| 423-416
| A |
Midway (Sullivan) |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-417
| A |
Chattanooga |
TN |
CHTGTN12X8X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
472 |
|
|
|
| 423-418
| A |
Midway (Sullivan) |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-419
| A |
Cumberland Gap |
TN |
LXTNKY24X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
466 |
|
|
|
| 423-420
| A |
Madisonville |
TN |
MDVITNMTDS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
474 |
|
|
|
| 423-421
| A |
Chattanooga |
TN |
CHTGTNNSXCZ |
5562 METROPCS, INC. |
472 |
|
|
|
| 423-422
| A |
Mosheim |
TN |
MOSHTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-423
| A |
Limestone |
TN |
|
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2026-01-11 |
|
| 423-424
| A |
Chattanooga |
TN |
CHTGTNNS04Z |
829J PAETEC ITEL, LLC |
472 |
|
2024-12-05 |
|
| 423-425
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-426
| A |
Limestone |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-427
| A |
Johnson City |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-428
| A |
Dayton |
TN |
CHTGTNNS04Z |
829J PAETEC ITEL, LLC |
472 |
|
2024-12-05 |
|
| 423-429
| A |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
|
|
| 423-430
| A |
Johnson City |
TN |
JHCYTNXCX0Y |
551G NUSO, LLC |
956 |
|
|
|
| 423-431
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-432
| A |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-433
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-434
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-435
| A |
Athens |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-436
| A |
Madisonville |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-437
| A |
La Follette |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-438
| A |
Morristown |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-439
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-440
| A |
Elizabethton |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-441
| A |
Cumberland Gap |
TN |
DAVLKYMAXAX |
365C POWERTEL KENTUCKY LICENSES, INC. |
466 |
|
|
|
| 423-442
| A |
Madisonville |
TN |
MDVITNMTDS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
474 |
|
|
|
| 423-443
| A |
Chattanooga |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-444
| A |
Limestone |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-445
| A |
Surgoinsville |
TN |
KNVLTNMA84Z |
516C AT&T CORP. |
474 |
|
|
|
| 423-446
| A |
Fall Branch |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-447
| A |
Pikeville |
TN |
PKVLTNXADS1 |
0554 BLEDSOE TEL. COOP. |
472 |
|
|
|
| 423-448
| A |
Pikeville |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-449
| A |
La Follette |
TN |
KNVLTNMAYAY |
829J PAETEC ITEL, LLC |
474 |
|
2024-12-05 |
|
| 423-450
| A |
Mosheim |
TN |
JHCYTNXCXHY |
318J COMCAST IP PHONE, LLC |
956 |
|
|
|
| 423-451
| A |
Soddy Daisy |
TN |
SDDSTNMARS5 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-452
| A |
Spring City |
TN |
SPCYTNMTRS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-453
| A |
Athens |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-454
| A |
Decatur |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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