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 |
| 423-657
| A |
Mosheim |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-658
| A |
Whitwell |
TN |
WHWLTNMARS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-659
| A |
Copper Basin |
TN |
CHTGTNNSXEY |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
472 |
|
|
|
| 423-660
| A |
Chattanooga |
TN |
CHTGTNNSXTZ |
506J TWILIO INTERNATIONAL, INC. |
472 |
|
|
|
| 423-661
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-662
| A |
Blountville |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-663
| A |
Huntsville |
TN |
HNVITNXARS0 |
0565 HIGHLAND TEL. COOP, INC. |
474 |
|
|
|
| 423-664
| A |
Chattanooga |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-665
| A |
Charleston |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-666
| A |
Elizabethton |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-667
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-668
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-669
| A |
Benton |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-670
| A |
Johnson City |
TN |
JHCYTNXCXJY |
515J IP HORIZON LLC |
956 |
|
|
|
| 423-671
| A |
Chattanooga |
TN |
CHTGTNNSXSZ |
515J IP HORIZON LLC |
472 |
|
|
|
| 423-672
| A |
Johnson City |
TN |
JHCYTNXCXAY |
073H TELNYX LLC |
956 |
|
|
|
| 423-673
| A |
Johnson City |
TN |
JHCYTNXCYZZ |
829J PAETEC ITEL, LLC |
956 |
|
2024-12-07 |
|
| 423-674
| A |
Dayton |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-675
| A |
Jasper |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-676
| A |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-677
| A |
Fall Branch |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-678
| A |
Roan Mountain |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-679
| A |
Ooltewah |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-680
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-681
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-682
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-683
| A |
Pikeville |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-684
| A |
Kingsport |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-685
| A |
Bristol |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2026-08-15 |
|
| 423-686
| A |
Fork Ridge |
TN |
WNCHKYMAEMD |
525E ONVOY, LLC - TN |
466 |
|
|
|
| 423-687
| A |
Pikeville |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-688
| A |
Sneedville |
TN |
KNVLTNMAY6X |
073H TELNYX LLC |
474 |
|
|
|
| 423-689
| A |
Bristol |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-690
| A |
Morristown |
TN |
KNVNTNEC0MD |
073H TELNYX LLC |
474 |
|
|
|
| 423-691
| A |
Athens |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2024-01-15 |
|
| 423-692
| A |
Butler |
TN |
JHCYTNXCX9Y |
081J SKYBEST COMMUNICATIONS, INC. - TN |
956 |
|
|
|
| 423-693
| A |
Chattanooga |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-694
| A |
Sweetwater |
TN |
KNVLTNMA96Z |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
|
|
| 423-695
| A |
Bristol |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2026-08-15 |
|
| 423-696
| A |
Rogersville |
TN |
KNVLTNMA96Z |
7476 POWERTEL NASHVILLE LICENSES, INC. |
474 |
|
|
|
| 423-697
| A |
Chattanooga |
TN |
CHTGTNDTDS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-698
| A |
Chattanooga |
TN |
CHTGTNDTDS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-699
| A |
Cleveland |
TN |
|
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
2026-11-05 |
|
| 423-701
| A |
Robbins |
TN |
KNVLTNMA31Z |
6278 UNITED STATES CELLULAR - TN |
474 |
|
|
|
| 423-702
| A |
Chattanooga |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-703
| A |
Coker Creek |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
|
|
| 423-704
| A |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-705
| A |
Johnson City |
TN |
JHCYTNXCXRY |
478J NUSO, LLC |
956 |
|
|
|
| 423-707
| A |
Elizabethton |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
|
|
| 423-708
| A |
Chattanooga |
TN |
CHTGTNNSXCZ |
5562 METROPCS, INC. |
472 |
|
|
|
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>
Last updated: Tue, 29 Sep 2026 03:00:13 UTC
Sponsored by: FiberConX Communications Ltd.
Like this site? We accept donations via PayPal.