Local Calling Guide
Area code/prefix search
NPA: 281
[Rate centres in NPA 281]
[Dial plan for NPA 281]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 281-501
| 7 |
Houston |
TX |
HSTNTXYADS5 |
903C ONVOY, LLC - TX |
560 |
|
2007-08-10 |
|
| 281-501
| 8 |
Houston |
TX |
HSTNTXMOX7X |
318J COMCAST IP PHONE, LLC |
560 |
|
2007-10-15 |
|
| 281-501
| 9 |
Houston |
TX |
HSTNTXMOX7X |
318J COMCAST IP PHONE, LLC |
560 |
|
2007-08-26 |
|
| 281-502
| A |
Highlands |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-502
| 0 |
Highlands |
TX |
BYTWTXXAHMD |
903C ONVOY, LLC - TX |
560 |
|
2017-04-26 |
|
| 281-502
| 1 |
Highlands |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-502
| 2 |
Highlands |
TX |
BYTWTXXAHMD |
903C ONVOY, LLC - TX |
560 |
|
2018-04-14 |
|
| 281-502
| 3 |
Highlands |
TX |
HSTNTXMOX7X |
318J COMCAST IP PHONE, LLC |
560 |
|
2014-09-04 |
|
| 281-502
| 4 |
Highlands |
TX |
HSTNTXJAXLX |
177F PEERLESS NETWORK OF TEXAS, LLC - TX |
560 |
|
2019-10-30 |
|
| 281-502
| 5 |
Highlands |
TX |
BYTWTXXAHMD |
903C ONVOY, LLC - TX |
560 |
|
2018-11-26 |
|
| 281-502
| 6 |
Highlands |
TX |
BYTWTXXAHMD |
903C ONVOY, LLC - TX |
560 |
|
2018-11-26 |
|
| 281-502
| 7 |
Highlands |
TX |
HSTSTXJV6MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
560 |
|
2015-05-21 |
|
| 281-502
| 8 |
Highlands |
TX |
HSTNTXJAXLX |
177F PEERLESS NETWORK OF TEXAS, LLC - TX |
560 |
|
2018-03-31 |
|
| 281-502
| 9 |
Highlands |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 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 |
|
| 281-504
| A |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 0 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 1 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 2 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 3 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 4 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 5 |
Houston Suburban |
TX |
HSTNTXMOX6X |
624H ONVOY SPECTRUM, LLC |
560 |
|
2022-05-22 |
|
| 281-504
| 6 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 7 |
Houston Suburban |
TX |
HSTNTXGI0MD |
004F BANDWIDTH.COM CLEC, LLC - TX |
560 |
|
2011-04-28 |
|
| 281-504
| 8 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-504
| 9 |
Houston Suburban |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-505
| A |
Katy |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-505
| 0 |
Katy |
TX |
HSTNTX01GT5 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2019-09-16 |
|
| 281-505
| 1 |
Katy |
TX |
HSTNTXMOX7X |
318J COMCAST IP PHONE, LLC |
560 |
|
2019-10-20 |
|
| 281-505
| 2 |
Katy |
TX |
HSTNTX01GT5 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2020-01-11 |
|
| 281-505
| 3 |
Katy |
TX |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
2019-04-08 |
|
| 281-505
| 4 |
Katy |
TX |
HSTNTX01GT5 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2020-03-08 |
|
| 281-505
| 5 |
Katy |
TX |
HSTNTX01GT5 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2020-03-08 |
|
| 281-505
| 6 |
Katy |
TX |
HSTNTX01MMD |
7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
560 |
|
2019-04-26 |
|
| 281-505
| 7 |
Katy |
TX |
HSTNTX01GT5 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2020-03-08 |
|
| 281-505
| 8 |
Katy |
TX |
HSTNTX01GT5 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2020-03-08 |
|
| 281-505
| 9 |
Katy |
TX |
HSTQTX02DS4 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
560 |
|
2020-07-05 |
|
| 281-506
| A |
Houston Suburban |
TX |
HSTNTXGIDS0 |
7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
560 |
|
|
|
| 281-506
| 0 |
Houston Suburban |
TX |
HSTQTX02DS4 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
560 |
|
2006-05-07 |
|
| 281-506
| 1 |
Houston Suburban |
TX |
HSTNTXGIDS0 |
7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
560 |
|
|
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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