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 |
| 312-809
| 4 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2013-12-09 |
|
| 312-809
| 5 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-06 |
|
| 312-809
| 6 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-06 |
|
| 312-809
| 7 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-06 |
|
| 312-809
| 8 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-06 |
|
| 312-809
| 9 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-06 |
|
| 312-815
| A |
CHCGIL249MD |
996H AIRESPRING, INC. |
358 |
|
|
|
| 312-815
| 0 |
CHCGIL249MD |
996H AIRESPRING, INC. |
358 |
|
2018-06-21 |
|
| 312-815
| 1 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 2 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 3 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 4 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 5 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 6 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 7 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 8 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-815
| 9 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2018-11-06 |
|
| 312-818
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-818
| 0 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-11-14 |
|
| 312-818
| 1 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2013-10-15 |
|
| 312-818
| 2 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2013-10-15 |
|
| 312-818
| 3 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2013-10-15 |
|
| 312-818
| 4 |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2013-10-04 |
|
| 312-818
| 5 |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2013-10-04 |
|
| 312-818
| 6 |
CHCGILCLDS7 |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2013-10-04 |
|
| 312-818
| 7 |
CHCGILCLDS7 |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2013-10-04 |
|
| 312-818
| 8 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-818
| 9 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-03 |
|
| 312-820
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 312-820
| 0 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 1 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 2 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 3 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 4 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 5 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 6 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 7 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 8 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-820
| 9 |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-03-09 |
|
| 312-824
| A |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-824
| 0 |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2016-08-05 |
|
| 312-824
| 1 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2016-08-05 |
|
| 312-824
| 2 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2016-08-04 |
|
| 312-824
| 3 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2016-08-04 |
|
| 312-824
| 4 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2016-08-04 |
|
| 312-824
| 5 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2016-08-05 |
|
| 312-824
| 6 |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2016-08-05 |
|
| 312-824
| 7 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2016-08-05 |
|
| 312-824
| 8 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2016-08-05 |
|
| 312-824
| 9 |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2016-08-05 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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