Local Calling Guide
Area code/prefix search
Chicago Zone 01-Calumet, IL
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 872-899
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2021-10-30 |
|
| 872-899
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2021-10-30 |
|
| 872-899
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2021-10-30 |
|
| 872-899
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2021-10-30 |
|
| 872-899
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2021-10-30 |
|
| 872-899
| 9 |
|
965H FRACTEL, LLC |
358 |
|
2021-10-21 |
|
| 872-910
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 872-910
| 0 |
|
224C ONVOY, LLC |
358 |
|
2021-05-14 |
|
| 872-910
| 1 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2021-07-03 |
|
| 872-910
| 2 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2021-07-03 |
|
| 872-910
| 3 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2021-06-04 |
|
| 872-910
| 4 |
|
224C ONVOY, LLC |
358 |
|
2021-07-03 |
|
| 872-910
| 5 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2021-07-03 |
|
| 872-910
| 6 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2021-07-03 |
|
| 872-910
| 7 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2021-05-23 |
|
| 872-910
| 8 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2021-05-23 |
|
| 872-910
| 9 |
|
224C ONVOY, LLC |
358 |
|
2021-07-03 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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