Local Calling Guide
Area code/prefix search
NPA: 972
[Rate centres in NPA 972]
[Dial plan for NPA 972]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 972-231
| A |
Dallas |
TX |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-232
| A |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 0 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 1 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 2 |
Dallas |
TX |
DLLATX37DS6 |
6114 LEVEL 3 COMMUNICATIONS, LLC - TX |
552 |
|
2011-06-09 |
|
| 972-232
| 3 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 4 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 5 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 6 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 7 |
Dallas |
TX |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2011-07-07 |
|
| 972-232
| 8 |
Dallas |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
|
|
| 972-232
| 9 |
Dallas |
TX |
DLLSTXALDS4 |
903C ONVOY, LLC - TX |
552 |
|
2011-07-08 |
|
| 972-233
| A |
Dallas |
TX |
DLLSTXADDS1 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-234
| A |
Dallas |
TX |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-235
| A |
Dallas |
TX |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-236
| A |
Carrollton |
TX |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-236
| 0 |
Carrollton |
TX |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-236
| 1 |
Carrollton |
TX |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-236
| 2 |
Carrollton |
TX |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-236
| 3 |
Carrollton |
TX |
|
515J IP HORIZON LLC |
552 |
|
2016-01-04 |
|
| 972-236
| 4 |
Carrollton |
TX |
IRNGTXXBXTY |
903C ONVOY, LLC - TX |
552 |
|
2016-01-07 |
|
| 972-236
| 5 |
Carrollton |
TX |
IRNGTXXBXTY |
903C ONVOY, LLC - TX |
552 |
|
2016-01-07 |
|
| 972-236
| 6 |
Carrollton |
TX |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-236
| 7 |
Carrollton |
TX |
IRNGTXXBXTY |
903C ONVOY, LLC - TX |
552 |
|
2011-04-04 |
|
| 972-236
| 8 |
Carrollton |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2015-12-30 |
|
| 972-236
| 9 |
Carrollton |
TX |
DLLBTXPVDS0 |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-237
| A |
Grand Prairie |
TX |
DLLSTXGPRPA |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-238
| A |
Dallas |
TX |
DLLSTXRNDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-239
| A |
Dallas |
TX |
DLLSTXADDS1 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-240
| A |
Plano |
TX |
GRLDTXXEDS0 |
4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS |
552 |
|
|
|
| 972-241
| A |
Dallas |
TX |
DLLSTXFBDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-242
| A |
Carrollton |
TX |
CRTNTXXADS0 |
4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS |
552 |
|
|
|
| 972-243
| A |
Dallas |
TX |
DLLSTXFBDS0 |
9533 SOUTHWESTERN BELL |
552 |
|
|
|
| 972-244
| A |
Plano |
TX |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-244
| 0 |
Plano |
TX |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-244
| 1 |
Plano |
TX |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-244
| 2 |
Plano |
TX |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-244
| 3 |
Plano |
TX |
DLLSTX37XWZ |
004F BANDWIDTH.COM CLEC, LLC - TX |
552 |
|
2010-11-18 |
|
| 972-244
| 4 |
Plano |
TX |
DLLSTXHM0MD |
829J PAETEC ITEL, LLC |
552 |
|
2011-01-20 |
|
| 972-244
| 5 |
Plano |
TX |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-244
| 6 |
Plano |
TX |
DLLSTXJFDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
552 |
|
2007-10-16 |
|
| 972-244
| 7 |
Plano |
TX |
DLLSTXHM0MD |
829J PAETEC ITEL, LLC |
552 |
|
2011-01-03 |
|
| 972-244
| 8 |
Plano |
TX |
DLLFTXFQDS1 |
7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
552 |
|
2008-06-12 |
|
| 972-244
| 9 |
Plano |
TX |
FTWOTXEDX1Z |
7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX |
552 |
|
|
|
| 972-245
| A |
Carrollton |
TX |
CRTNTXXADS0 |
4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS |
552 |
|
|
|
| 972-246
| A |
Dallas |
TX |
DLLSTXRIXPZ |
7421 AT&T - LOCAL |
552 |
|
|
|
| 972-246
| 0 |
Dallas |
TX |
DLLSTXRIXPZ |
7421 AT&T - LOCAL |
552 |
|
|
|
| 972-246
| 1 |
Dallas |
TX |
DLLSTXRIXPZ |
7421 AT&T - LOCAL |
552 |
|
|
|
| 972-246
| 2 |
Dallas |
TX |
DLLSTXRIXPZ |
7421 AT&T - LOCAL |
552 |
|
|
|
| 972-246
| 3 |
Dallas |
TX |
DLLSTXRIXPZ |
7421 AT&T - LOCAL |
552 |
|
|
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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