Local Calling Guide
Area code/prefix search
NPA: 512
[Rate centres in NPA 512]
[Dial plan for NPA 512]
NXX: 399
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 512-399
| A |
Thorndale-Thrall |
TX |
AUSTTXGRDS6 |
177F PEERLESS NETWORK OF TEXAS, LLC - TX |
558 |
|
|
|
| 512-399
| 0 |
Thorndale-Thrall |
TX |
AUSTTXGR03Z |
903C ONVOY, LLC - TX |
558 |
|
2016-04-22 |
|
| 512-399
| 1 |
Thorndale-Thrall |
TX |
AUSTTXGR03Z |
903C ONVOY, LLC - TX |
558 |
|
2016-04-22 |
|
| 512-399
| 2 |
Thorndale-Thrall |
TX |
AUSTTXGR03Z |
903C ONVOY, LLC - TX |
558 |
|
2017-06-30 |
|
| 512-399
| 3 |
Thorndale-Thrall |
TX |
AUSTTXGR03Z |
903C ONVOY, LLC - TX |
558 |
|
2017-12-22 |
|
| 512-399
| 4 |
Thorndale-Thrall |
TX |
AUSTTXGR03Z |
903C ONVOY, LLC - TX |
558 |
|
2018-03-23 |
|
| 512-399
| 5 |
Thorndale-Thrall |
TX |
AUSTTXGRDS6 |
177F PEERLESS NETWORK OF TEXAS, LLC - TX |
558 |
|
2014-07-18 |
|
| 512-399
| 6 |
Thorndale-Thrall |
TX |
AUSYTXFC0MD |
004F BANDWIDTH.COM CLEC, LLC - TX |
558 |
|
2018-06-07 |
|
| 512-399
| 7 |
Thorndale-Thrall |
TX |
AUSTTXUH5MD |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
558 |
|
2014-07-21 |
|
| 512-399
| 8 |
Thorndale-Thrall |
TX |
AUSTTXGRDS6 |
177F PEERLESS NETWORK OF TEXAS, LLC - TX |
558 |
|
2018-07-16 |
|
| 512-399
| 9 |
Thorndale-Thrall |
TX |
AUSTTXGR03Z |
903C ONVOY, LLC - TX |
558 |
|
2015-11-05 |
|
Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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