Local Calling Guide
Area code/prefix search
Dallas, TX
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 972-581
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 7 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-581
| 8 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2010-06-03 |
|
| 972-581
| 9 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-05-22 |
|
| 972-584
| A |
DLLSTXNODS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-584
| 0 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2010-05-01 |
|
| 972-584
| 1 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2010-05-01 |
|
| 972-584
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-584
| 3 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-584
| 4 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-584
| 5 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-584
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2012-01-30 |
|
| 972-584
| 7 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2012-08-16 |
|
| 972-584
| 8 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-584
| 9 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2010-06-17 |
|
| 972-587
| A |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-587
| 0 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-05-22 |
|
| 972-587
| 1 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-587
| 2 |
|
829J PAETEC ITEL, LLC |
552 |
|
2011-03-31 |
|
| 972-587
| 3 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-587
| 4 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-587
| 5 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-587
| 6 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-05-22 |
|
| 972-587
| 7 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-08-26 |
|
| 972-587
| 8 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-587
| 9 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-05-22 |
|
| 972-588
| A |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 0 |
|
624H ONVOY SPECTRUM, LLC |
552 |
|
2021-05-22 |
|
| 972-588
| 1 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 2 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 3 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 4 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-08-26 |
|
| 972-588
| 5 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 6 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 7 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 8 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-588
| 9 |
|
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-590
| A |
DLLFTXFQDS1 |
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 0 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 1 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 2 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 3 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 4 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 5 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 6 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-05-22 |
|
| 972-590
| 7 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-590
| 8 |
|
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-05-22 |
|
| 972-590
| 9 |
|
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
|
|
| 972-591
| A |
DLLSTXADDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-591
| 0 |
|
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2007-09-07 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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