Local Calling Guide
Area code/prefix search
Dallas, TX
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 972-546
| 3 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
|
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| 972-546
| 4 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
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|
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| 972-546
| 5 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
|
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| 972-546
| 6 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
|
|
| 972-546
| 7 |
|
903C ONVOY, LLC - TX |
552 |
|
2009-10-05 |
|
| 972-546
| 8 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2025-06-11 |
|
| 972-546
| 9 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
|
|
| 972-556
| A |
DLLSTXNODS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 0 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 1 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 3 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 4 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 5 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-06-17 |
|
| 972-556
| 6 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 7 |
|
9533 SOUTHWESTERN BELL |
552 |
|
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|
| 972-556
| 8 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-556
| 9 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-557
| A |
DLLSTXRYDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-559
| A |
DLLSTXFLDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-559
| 0 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-06-17 |
|
| 972-559
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-11-06 |
|
| 972-559
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-11-06 |
|
| 972-559
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-11-06 |
|
| 972-559
| 4 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-04-28 |
|
| 972-559
| 5 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-559
| 6 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-559
| 7 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-559
| 8 |
|
903C ONVOY, LLC - TX |
552 |
|
2009-10-05 |
|
| 972-559
| 9 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-06-17 |
|
| 972-560
| A |
DLLSTXJFPS1 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-566
| A |
DLLSTXEMDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| A |
DLLSTXDVDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 0 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 1 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 3 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 4 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 5 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 6 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2025-06-11 |
|
| 972-572
| 7 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 8 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-572
| 9 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-581
| A |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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