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 |
| 312-890
| 5 |
|
5562 METROPCS, INC. |
358 |
|
2010-11-05 |
|
| 312-890
| 6 |
|
5562 METROPCS, INC. |
358 |
|
2010-11-05 |
|
| 312-890
| 7 |
|
5562 METROPCS, INC. |
358 |
|
2010-11-05 |
|
| 312-890
| 8 |
|
5562 METROPCS, INC. |
358 |
|
|
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| 312-890
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-892
| A |
OKBRILOAXEX |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
|
| 312-892
| 0 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
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| 312-892
| 1 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
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| 312-892
| 2 |
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7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
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|
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| 312-892
| 3 |
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7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
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| 312-892
| 4 |
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7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
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|
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| 312-892
| 5 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
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|
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| 312-892
| 6 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
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| 312-892
| 7 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
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|
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| 312-892
| 8 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
|
| 312-892
| 9 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
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| 312-893
| A |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-893
| 0 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
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| 312-893
| 1 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
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| 312-893
| 2 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
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| 312-893
| 3 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
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| 312-893
| 4 |
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6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
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|
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| 312-893
| 5 |
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6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
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| 312-893
| 6 |
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6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
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|
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| 312-893
| 7 |
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6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
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|
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| 312-893
| 8 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-893
| 9 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-06-16 |
|
| 312-895
| A |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-896
| A |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-897
| A |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-897
| 0 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-04 |
|
| 312-897
| 1 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2015-05-25 |
|
| 312-897
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-05-07 |
|
| 312-897
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-05-07 |
|
| 312-897
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-05-07 |
|
| 312-897
| 5 |
|
224C ONVOY, LLC |
358 |
|
2015-06-05 |
|
| 312-897
| 6 |
|
224C ONVOY, LLC |
358 |
|
2015-06-05 |
|
| 312-897
| 7 |
|
224C ONVOY, LLC |
358 |
|
2015-06-05 |
|
| 312-897
| 8 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-04 |
|
| 312-897
| 9 |
|
5562 METROPCS, INC. |
358 |
|
2015-06-04 |
|
| 312-900
| A |
CHCGILWURMD |
965H FRACTEL, LLC |
358 |
|
|
|
| 312-900
| 0 |
|
965H FRACTEL, LLC |
358 |
|
2019-03-23 |
|
| 312-900
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2019-03-24 |
|
| 312-900
| 8 |
|
224C ONVOY, LLC |
358 |
|
2019-06-28 |
|
| 312-900
| 9 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2019-05-18 |
|
| 312-901
| A |
LBRDILGOAMD |
6630 USA MOBILITY WIRELESS, INC. |
358 |
|
|
|
| 312-907
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-907
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-910
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 312-910
| 0 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 1 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 2 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 3 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 4 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 5 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 6 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 7 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 8 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-910
| 9 |
|
224C ONVOY, LLC |
358 |
|
2022-11-20 |
|
| 312-918
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-918
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-918
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-10-17 |
|
| 312-921
| A |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-921
| 0 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 1 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 2 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 3 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 4 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 5 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 6 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 7 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 8 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-921
| 9 |
|
9329 ILLINOIS BELL TEL CO |
358 |
|
2008-09-01 |
|
| 312-924
| A |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2024-12-09 |
|
| 312-929
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-929
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2011-06-12 |
|
| 312-929
| 1 |
|
829J PAETEC ITEL, LLC |
358 |
|
2009-12-14 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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