Local Calling Guide
Area code/prefix search
Houston Suburban, TX
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 281-674
| 6 |
|
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
2010-11-19 |
|
| 281-674
| 7 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
560 |
|
2008-11-25 |
|
| 281-674
| 8 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
560 |
|
2008-11-25 |
|
| 281-674
| 9 |
|
903C ONVOY, LLC - TX |
560 |
|
2011-06-17 |
|
| 281-677
| A |
HSTOTX46DS0 |
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-677
| 0 |
|
6701 AERIAL COMMUNICATIONS, INC. |
560 |
|
2011-07-27 |
|
| 281-677
| 1 |
|
6701 AERIAL COMMUNICATIONS, INC. |
560 |
|
2011-07-27 |
|
| 281-677
| 2 |
|
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-677
| 3 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
560 |
|
2008-11-25 |
|
| 281-677
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
560 |
|
2008-11-10 |
|
| 281-677
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
560 |
|
2008-11-10 |
|
| 281-677
| 6 |
|
903C ONVOY, LLC - TX |
560 |
|
2011-06-17 |
|
| 281-677
| 7 |
|
6701 AERIAL COMMUNICATIONS, INC. |
560 |
|
2011-07-27 |
|
| 281-677
| 8 |
|
903C ONVOY, LLC - TX |
560 |
|
2009-02-11 |
|
| 281-677
| 9 |
|
7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX |
560 |
|
|
|
| 281-679
| A |
HSTNTXBUDS0 |
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-721
| A |
HSTNTXBUDS0 |
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-721
| 0 |
|
903C ONVOY, LLC - TX |
560 |
|
2020-10-10 |
|
| 281-721
| 1 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-721
| 2 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2018-11-29 |
|
| 281-721
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2020-01-05 |
|
| 281-721
| 4 |
|
197D VONAGE AMERICA LLC |
560 |
|
2018-12-06 |
|
| 281-721
| 5 |
|
903C ONVOY, LLC - TX |
560 |
|
2009-02-11 |
|
| 281-721
| 6 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-721
| 7 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-721
| 8 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-721
| 9 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
560 |
|
2011-02-24 |
|
| 281-741
| A |
HSTNTXMOX7X |
318J COMCAST IP PHONE, LLC |
560 |
|
|
|
| 281-741
| 0 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-02-14 |
|
| 281-741
| 1 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-02-14 |
|
| 281-741
| 2 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-02-14 |
|
| 281-741
| 3 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-09-03 |
|
| 281-741
| 4 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-09-03 |
|
| 281-741
| 5 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-09-03 |
|
| 281-741
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
560 |
|
2007-08-31 |
|
| 281-741
| 7 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-09-03 |
|
| 281-741
| 8 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-09-03 |
|
| 281-741
| 9 |
|
318J COMCAST IP PHONE, LLC |
560 |
|
2007-09-03 |
|
| 281-749
| A |
HSTNTXBUDS0 |
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 0 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 1 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
560 |
|
2010-06-24 |
|
| 281-749
| 2 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 3 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 4 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 5 |
|
903C ONVOY, LLC - TX |
560 |
|
2009-02-11 |
|
| 281-749
| 6 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
560 |
|
2023-12-17 |
|
| 281-749
| 8 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-749
| 9 |
|
9533 SOUTHWESTERN BELL |
560 |
|
|
|
| 281-752
| A |
HSTNTXBUDS0 |
9533 SOUTHWESTERN BELL |
560 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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