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 |
| 312-773
| 8 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2023-07-22 |
|
| 312-773
| 9 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2023-07-22 |
|
| 312-774
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-774
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-774
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-776
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-776
| 0 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2019-05-27 |
|
| 312-776
| 1 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2019-05-27 |
|
| 312-776
| 2 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-05-24 |
|
| 312-776
| 3 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-05-24 |
|
| 312-776
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-31 |
|
| 312-776
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-31 |
|
| 312-776
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-31 |
|
| 312-776
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-31 |
|
| 312-776
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-31 |
|
| 312-776
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-31 |
|
| 312-778
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 312-778
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-06-29 |
|
| 312-778
| 1 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-12 |
|
| 312-778
| 2 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-12 |
|
| 312-778
| 3 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-12 |
|
| 312-778
| 4 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-12 |
|
| 312-778
| 5 |
|
224C ONVOY, LLC |
358 |
|
2015-06-09 |
|
| 312-778
| 6 |
|
224C ONVOY, LLC |
358 |
|
2015-06-09 |
|
| 312-778
| 7 |
|
224C ONVOY, LLC |
358 |
|
2015-06-09 |
|
| 312-778
| 8 |
|
224C ONVOY, LLC |
358 |
|
2015-06-09 |
|
| 312-778
| 9 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-12 |
|
| 312-779
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 312-779
| 0 |
|
224C ONVOY, LLC |
358 |
|
2019-07-12 |
|
| 312-779
| 1 |
|
224C ONVOY, LLC |
358 |
|
2019-07-12 |
|
| 312-779
| 2 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2019-07-15 |
|
| 312-779
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2019-07-13 |
|
| 312-779
| 4 |
|
5562 METROPCS, INC. |
358 |
|
2019-07-28 |
|
| 312-779
| 5 |
|
5562 METROPCS, INC. |
358 |
|
2019-07-28 |
|
| 312-779
| 6 |
|
224C ONVOY, LLC |
358 |
|
2020-04-04 |
|
| 312-779
| 7 |
|
5562 METROPCS, INC. |
358 |
|
2019-07-28 |
|
| 312-779
| 8 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2019-07-13 |
|
| 312-779
| 9 |
|
5562 METROPCS, INC. |
358 |
|
2019-07-28 |
|
| 312-783
| A |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-783
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
| 312-783
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-29 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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