Local Calling Guide
Area code/prefix search
NPA: 281
[Rate centres in NPA 281]
[Dial plan for NPA 281]
NXX: 503
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
281-503
| A |
Porter Heights |
TX |
HSTNTXCLX5Y |
7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX |
560 |
|
|
|
281-503
| 0 |
Porter Heights |
TX |
HSTNTXCLX5Y |
7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX |
560 |
|
|
|
281-503
| 1 |
Porter Heights |
TX |
HSTNTXGI0MD |
004F BANDWIDTH.COM CLEC, LLC - TX |
560 |
|
2015-02-14 |
|
281-503
| 2 |
Porter Heights |
TX |
NCGDTXNCKMD |
318C CEBRIDGE TELECOM TX , L.P. - TX |
560 |
|
2014-02-28 |
|
281-503
| 3 |
Porter Heights |
TX |
HSTNTXCLX5Y |
7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX |
560 |
|
|
|
281-503
| 4 |
Porter Heights |
TX |
HSTNTXGI0MD |
004F BANDWIDTH.COM CLEC, LLC - TX |
560 |
|
2015-08-31 |
|
281-503
| 5 |
Porter Heights |
TX |
HSTNTXYADS5 |
903C ONVOY, LLC - TX |
560 |
|
2017-05-28 |
|
281-503
| 6 |
Porter Heights |
TX |
HSTNTX01MMD |
7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
560 |
|
2014-06-23 |
|
281-503
| 7 |
Porter Heights |
TX |
HSTNTXYADS5 |
903C ONVOY, LLC - TX |
560 |
|
2011-11-18 |
|
281-503
| 8 |
Porter Heights |
TX |
HSTNTXGI0MD |
004F BANDWIDTH.COM CLEC, LLC - TX |
560 |
|
2018-05-27 |
|
281-503
| 9 |
Porter Heights |
TX |
HSTQTX02DS4 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
560 |
|
2019-05-05 |
|
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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