Local Calling Guide
Area code/prefix search
Dallas, TX
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 972-996
| 1 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2010-09-04 |
|
| 972-996
| 2 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2010-09-04 |
|
| 972-996
| 3 |
DLLSTXHM0MD |
829J PAETEC ITEL, LLC |
552 |
|
2009-10-20 |
|
| 972-996
| 4 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2007-03-16 |
|
| 972-996
| 5 |
DLLSTXHM0MD |
829J PAETEC ITEL, LLC |
552 |
|
2008-06-29 |
|
| 972-996
| 6 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2008-10-30 |
|
| 972-996
| 7 |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2011-05-06 |
|
| 972-996
| 8 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-996
| 9 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| A |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 0 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 1 |
DLLTTXID1MD |
5562 METROPCS, INC. |
552 |
|
2011-03-24 |
|
| 972-997
| 2 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 3 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 4 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 5 |
DLLTTXID1MD |
5562 METROPCS, INC. |
552 |
|
2011-03-24 |
|
| 972-997
| 6 |
DLLTTXID1MD |
5562 METROPCS, INC. |
552 |
|
2011-03-24 |
|
| 972-997
| 7 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 8 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-997
| 9 |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
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Last updated: Sat, 21 Mar 2026 23:53:39 UTC
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