Local Calling Guide
Area code/prefix search
Dallas, TX
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 972-744
| A |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 0 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 1 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2010-11-03 |
|
| 972-744
| 4 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 5 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2010-11-03 |
|
| 972-744
| 7 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 8 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-744
| 9 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-749
| A |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-755
| A |
DLLSTXALDS4 |
903C ONVOY, LLC - TX |
552 |
|
|
|
| 972-755
| 0 |
|
903C ONVOY, LLC - TX |
552 |
|
|
|
| 972-755
| 1 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2007-09-24 |
|
| 972-755
| 2 |
|
903C ONVOY, LLC - TX |
552 |
|
|
|
| 972-755
| 3 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2007-10-25 |
|
| 972-755
| 4 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2004-07-29 |
|
| 972-755
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-06-20 |
|
| 972-755
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-06-20 |
|
| 972-755
| 7 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-06-20 |
|
| 972-755
| 8 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2005-06-20 |
|
| 972-755
| 9 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2012-09-10 |
|
| 972-759
| A |
DLLSTXJFPS1 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-761
| A |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 0 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2010-11-03 |
|
| 972-761
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2010-11-03 |
|
| 972-761
| 4 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 5 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2019-04-29 |
|
| 972-761
| 6 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 7 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 8 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-761
| 9 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| A |
DLLSTXADDS1 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| 0 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| 1 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| 3 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| 4 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-763
| 5 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-11-27 |
|
| 972-763
| 6 |
|
5562 METROPCS, INC. |
552 |
|
2011-03-24 |
|
| 972-763
| 7 |
|
624H ONVOY SPECTRUM, LLC |
552 |
|
2021-12-19 |
|
| 972-763
| 8 |
|
829J PAETEC ITEL, LLC |
552 |
|
2011-06-10 |
|
| 972-763
| 9 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2025-06-19 |
|
| 972-764
| A |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-764
| 0 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-764
| 1 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-764
| 2 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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