Local Calling Guide
Area code/prefix search
Theresa, WI
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 920-276
| A |
THRSWIXARS4 |
0886 FRONTIER NORTH INC. - WI |
356 |
|
|
|
| 920-276
| 0 |
|
0886 FRONTIER NORTH INC. - WI |
356 |
|
|
|
| 920-276
| 1 |
|
5489 LEVEL 3 COMMUNICATIONS, LLC - WI |
356 |
|
2006-08-21 |
|
| 920-276
| 2 |
|
792K CHARTER IP ENABLED SERVICES, LLC |
356 |
|
2007-05-11 |
|
| 920-276
| 3 |
|
225C ONVOY, LLC - WI |
356 |
|
2021-06-03 |
|
| 920-276
| 4 |
|
225C ONVOY, LLC - WI |
356 |
|
2021-06-03 |
|
| 920-276
| 5 |
|
624H ONVOY SPECTRUM, LLC |
356 |
|
2021-06-27 |
|
| 920-276
| 6 |
|
7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI |
356 |
|
2018-03-30 |
|
| 920-276
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
356 |
|
2015-01-05 |
|
| 920-276
| 8 |
|
225C ONVOY, LLC - WI |
356 |
|
2021-04-12 |
|
| 920-276
| 9 |
|
225C ONVOY, LLC - WI |
356 |
|
2021-07-02 |
|
| 920-353
| A |
PLMOWIXAGMD |
506J TWILIO INTERNATIONAL, INC. |
356 |
|
2025-01-17 |
|
| 920-353
| 2 |
|
225C ONVOY, LLC - WI |
356 |
|
2023-08-13 |
|
| 920-353
| 3 |
|
506J TWILIO INTERNATIONAL, INC. |
356 |
|
2025-01-18 |
|
| 920-353
| 5 |
|
145J TERRA NOVA TELECOM INC. |
356 |
|
2025-08-21 |
|
| 920-488
| A |
THRSWIXARS4 |
0886 FRONTIER NORTH INC. - WI |
356 |
|
|
|
| 920-488
| 0 |
|
624H ONVOY SPECTRUM, LLC |
356 |
|
2021-11-27 |
|
| 920-488
| 1 |
|
624H ONVOY SPECTRUM, LLC |
356 |
|
2021-11-27 |
|
| 920-488
| 2 |
|
0886 FRONTIER NORTH INC. - WI |
356 |
|
|
|
| 920-488
| 3 |
|
0886 FRONTIER NORTH INC. - WI |
356 |
|
|
|
| 920-488
| 4 |
|
0886 FRONTIER NORTH INC. - WI |
356 |
|
|
|
| 920-488
| 5 |
|
490J DISH WIRELESS, LLC |
356 |
|
2023-06-12 |
|
| 920-488
| 6 |
|
225C ONVOY, LLC - WI |
356 |
|
2022-12-23 |
|
| 920-488
| 8 |
|
965H FRACTEL, LLC |
356 |
|
2020-03-19 |
|
| 920-488
| 9 |
|
225C ONVOY, LLC - WI |
356 |
|
2020-04-19 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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