Local Calling Guide
Area code/prefix search
NPA: 423
[Rate centres in NPA 423]
[Dial plan for NPA 423]
NXX: 481
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 423-481
| A |
Roan Mountain |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-481
| 0 |
Roan Mountain |
TN |
|
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2011-10-30 |
|
| 423-481
| 1 |
Roan Mountain |
TN |
|
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2014-06-28 |
|
| 423-481
| 2 |
Roan Mountain |
TN |
|
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2017-03-12 |
|
| 423-481
| 3 |
Roan Mountain |
TN |
|
525E ONVOY, LLC - TN |
956 |
|
2018-06-09 |
|
| 423-481
| 4 |
Roan Mountain |
TN |
|
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
956 |
|
2017-08-11 |
|
| 423-481
| 5 |
Roan Mountain |
TN |
|
073H TELNYX LLC |
956 |
|
2021-01-23 |
|
| 423-481
| 6 |
Roan Mountain |
TN |
|
525E ONVOY, LLC - TN |
956 |
|
2021-02-17 |
|
| 423-481
| 7 |
Roan Mountain |
TN |
|
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2014-04-19 |
|
| 423-481
| 8 |
Roan Mountain |
TN |
|
525E ONVOY, LLC - TN |
956 |
|
2019-06-06 |
|
| 423-481
| 9 |
Roan Mountain |
TN |
|
525E ONVOY, LLC - TN |
956 |
|
2019-06-06 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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