Local Calling Guide
Area code/prefix search
Dallas, TX
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 972-927
| 5 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-927
| 6 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2025-05-12 |
|
| 972-927
| 7 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2025-05-12 |
|
| 972-927
| 8 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-927
| 9 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| A |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 0 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 1 |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2019-06-17 |
|
| 972-930
| 2 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 3 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 4 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 5 |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-11-15 |
|
| 972-930
| 6 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 7 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 8 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-930
| 9 |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-931
| A |
DLLSTXREDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-934
| A |
DLLSTXADDS1 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-936
| A |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-936
| 0 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 1 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 2 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 3 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 4 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 5 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 6 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 7 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 8 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-936
| 9 |
|
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-04-23 |
|
| 972-940
| A |
DLLSTXNODS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-940
| 0 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2017-04-07 |
|
| 972-940
| 1 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2017-04-07 |
|
| 972-940
| 2 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2017-04-07 |
|
| 972-940
| 3 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2017-07-25 |
|
| 972-940
| 4 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2017-04-07 |
|
| 972-940
| 5 |
|
6529 T-MOBILE USA, INC. |
552 |
|
2017-07-25 |
|
| 972-940
| 6 |
DLLSTXNODS0 |
9533 SOUTHWESTERN BELL |
552 |
|
2017-02-23 |
|
| 972-940
| 7 |
DLLSTXNODS0 |
9533 SOUTHWESTERN BELL |
552 |
|
2017-02-23 |
|
| 972-940
| 8 |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2017-09-08 |
|
| 972-940
| 9 |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2017-09-08 |
|
| 972-942
| A |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-942
| 0 |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2018-07-15 |
|
| 972-942
| 1 |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2018-07-15 |
|
| 972-942
| 2 |
DLLSTXHM0MD |
829J PAETEC ITEL, LLC |
552 |
|
2018-05-29 |
|
| 972-942
| 3 |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-05-29 |
|
| 972-942
| 4 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2018-05-29 |
|
| 972-942
| 5 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2018-05-29 |
|
| 972-942
| 6 |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-05-28 |
|
| 972-942
| 7 |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
2018-07-16 |
|
| 972-942
| 8 |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2019-04-29 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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