Local Calling Guide
Area code/prefix search
NPA: 423
[Rate centres in NPA 423]
[Dial plan for NPA 423]
NXX: 720
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
423-720
| A |
Newport |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
|
|
423-720
| 0 |
Newport |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2015-07-18 |
|
423-720
| 1 |
Newport |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2015-11-16 |
|
423-720
| 2 |
Newport |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-03-21 |
|
423-720
| 3 |
Newport |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-03-21 |
|
423-720
| 4 |
Newport |
TN |
KNVNTNEC0MD |
073H TELNYX LLC |
474 |
|
2017-03-30 |
|
423-720
| 5 |
Newport |
TN |
|
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2025-10-17 |
|
423-720
| 6 |
Newport |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
423-720
| 7 |
Newport |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
423-720
| 8 |
Newport |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
423-720
| 9 |
Newport |
TN |
|
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2017-12-02 |
|
Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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