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 |
| 423-510
| A |
Chattanooga |
TN |
CHTGTNBRDS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-512
| A |
Stoney Creek |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-512
| 0 |
Stoney Creek |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2003-09-27 |
|
| 423-512
| 1 |
Stoney Creek |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2003-09-27 |
|
| 423-512
| 2 |
Stoney Creek |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2003-09-27 |
|
| 423-512
| 3 |
Stoney Creek |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2019-06-06 |
|
| 423-512
| 4 |
Stoney Creek |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2012-01-05 |
|
| 423-512
| 5 |
Stoney Creek |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2016-09-17 |
|
| 423-512
| 6 |
Stoney Creek |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2018-06-09 |
|
| 423-512
| 7 |
Stoney Creek |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2014-04-19 |
|
| 423-512
| 8 |
Stoney Creek |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2019-06-06 |
|
| 423-512
| 9 |
Stoney Creek |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2005-01-23 |
|
| 423-513
| A |
Vonore |
TN |
KNVLTNMA54Z |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
474 |
|
|
|
| 423-513
| 0 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2023-09-18 |
|
| 423-513
| 2 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2023-01-10 |
|
| 423-513
| 3 |
Vonore |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2023-03-27 |
|
| 423-513
| 6 |
Vonore |
TN |
KNVLTNMA54Z |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
474 |
|
2023-01-09 |
|
| 423-514
| A |
Chattanooga |
TN |
CHTGTNMAXTX |
6630 SPOK, INC. |
472 |
|
|
|
| 423-515
| A |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-515
| 0 |
South Pittsburg |
TN |
CHTGTNNSXJZ |
073H TELNYX LLC |
472 |
|
2021-01-23 |
|
| 423-515
| 1 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-03-15 |
|
| 423-515
| 2 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-07-11 |
|
| 423-515
| 3 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2021-07-11 |
|
| 423-515
| 5 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2019-11-29 |
|
| 423-515
| 6 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2019-11-29 |
|
| 423-515
| 7 |
South Pittsburg |
TN |
CHTITNCDDS0 |
4645 ELECTRIC POWER BOARD OF CHATTANOOGA |
472 |
|
2020-02-27 |
|
| 423-515
| 8 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2022-12-05 |
|
| 423-515
| 9 |
South Pittsburg |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2022-12-05 |
|
| 423-516
| A |
Sullivan Gardens |
TN |
SLGRTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-516
| 0 |
Sullivan Gardens |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2015-02-21 |
|
| 423-516
| 1 |
Sullivan Gardens |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2023-09-16 |
|
| 423-516
| 2 |
Sullivan Gardens |
TN |
SLGRTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
2012-04-13 |
|
| 423-516
| 3 |
Sullivan Gardens |
TN |
SLGRTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
2012-05-26 |
|
| 423-516
| 4 |
Sullivan Gardens |
TN |
SLGRTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
2012-05-26 |
|
| 423-516
| 5 |
Sullivan Gardens |
TN |
JHCYTNXCX3X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
956 |
|
2013-06-01 |
|
| 423-516
| 6 |
Sullivan Gardens |
TN |
JHCYTNXCXRX |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
956 |
|
2016-09-16 |
|
| 423-516
| 7 |
Sullivan Gardens |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2014-04-21 |
|
| 423-516
| 8 |
Sullivan Gardens |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2018-06-09 |
|
| 423-516
| 9 |
Sullivan Gardens |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2018-08-05 |
|
| 423-517
| A |
Chattanooga |
TN |
CHTGTNSMRS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-518
| A |
Elizabethton |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-518
| 0 |
Elizabethton |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2015-05-08 |
|
| 423-518
| 1 |
Elizabethton |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2013-04-04 |
|
| 423-518
| 2 |
Elizabethton |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2022-09-29 |
|
| 423-518
| 3 |
Elizabethton |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2016-08-22 |
|
| 423-518
| 4 |
Elizabethton |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2018-07-08 |
|
| 423-518
| 5 |
Elizabethton |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
2022-09-29 |
|
| 423-518
| 6 |
Elizabethton |
TN |
JHCYTNXCXRX |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
956 |
|
2016-09-05 |
|
| 423-518
| 7 |
Elizabethton |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2024-10-29 |
|
| 423-518
| 8 |
Elizabethton |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2024-04-17 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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