Local Calling Guide
Area code/prefix search
NPA: 423
[Rate centres in NPA 423]
[Dial plan for NPA 423]
NXX: 436
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 423-436
| A |
Madisonville |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-436
| 0 |
Madisonville |
TN |
KNVLTNMANMD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
474 |
|
|
|
| 423-436
| 1 |
Madisonville |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2014-07-07 |
|
| 423-436
| 2 |
Madisonville |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2015-09-10 |
|
| 423-436
| 3 |
Madisonville |
TN |
KNVLTNIIDS0 |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
474 |
|
2011-09-05 |
|
| 423-436
| 4 |
Madisonville |
TN |
KNVLTNMA56Z |
124F BANDWIDTH.COM CLEC, LLC - TN |
474 |
|
2016-08-22 |
|
| 423-436
| 5 |
Madisonville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
| 423-436
| 6 |
Madisonville |
TN |
KNVLTNMA54Z |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
474 |
|
2013-04-24 |
|
| 423-436
| 7 |
Madisonville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-04-18 |
|
| 423-436
| 8 |
Madisonville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-04-18 |
|
| 423-436
| 9 |
Madisonville |
TN |
KNVLTNMA49Z |
525E ONVOY, LLC - TN |
474 |
|
2016-06-09 |
|
Last updated: Sat, 05 Apr 2025 03:03:23 UTC
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