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 |
| 312-581
| 0 |
|
5562 METROPCS, INC. |
358 |
|
2017-10-12 |
|
| 312-581
| 1 |
|
5562 METROPCS, INC. |
358 |
|
2017-10-12 |
|
| 312-581
| 2 |
|
5562 METROPCS, INC. |
358 |
|
2017-10-12 |
|
| 312-581
| 3 |
|
5562 METROPCS, INC. |
358 |
|
2017-10-12 |
|
| 312-581
| 4 |
|
5562 METROPCS, INC. |
358 |
|
2017-10-12 |
|
| 312-581
| 5 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-09-21 |
|
| 312-581
| 6 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-09-21 |
|
| 312-581
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-09-21 |
|
| 312-581
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-09-21 |
|
| 312-581
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-09-21 |
|
| 312-584
| A |
CHCGIL24KMD |
597F VOIP INNOVATIONS, LLC |
358 |
|
|
|
| 312-584
| 0 |
|
597F VOIP INNOVATIONS, LLC |
358 |
|
2018-09-28 |
|
| 312-584
| 1 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 2 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 3 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 4 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 5 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 6 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 7 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 8 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-584
| 9 |
|
224C ONVOY, LLC |
358 |
|
2019-02-18 |
|
| 312-585
| A |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-585
| 0 |
|
829J PAETEC ITEL, LLC |
358 |
|
2013-08-07 |
|
| 312-585
| 1 |
|
5447 ACCESS ONE, INC. - IL |
358 |
|
2013-06-14 |
|
| 312-585
| 2 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-06-23 |
|
| 312-585
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2013-06-07 |
|
| 312-585
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2013-06-07 |
|
| 312-585
| 5 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-06-23 |
|
| 312-585
| 6 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-06-23 |
|
| 312-585
| 7 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-06-23 |
|
| 312-585
| 8 |
|
224C ONVOY, LLC |
358 |
|
2013-07-12 |
|
| 312-585
| 9 |
|
829J PAETEC ITEL, LLC |
358 |
|
2013-08-01 |
|
| 312-586
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 312-586
| 0 |
|
5562 METROPCS, INC. |
358 |
|
2016-07-16 |
|
| 312-586
| 1 |
|
224C ONVOY, LLC |
358 |
|
2016-06-03 |
|
| 312-586
| 2 |
|
224C ONVOY, LLC |
358 |
|
2016-06-03 |
|
| 312-586
| 3 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2016-07-01 |
|
| 312-586
| 4 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2016-07-01 |
|
| 312-586
| 5 |
|
5562 METROPCS, INC. |
358 |
|
2016-07-16 |
|
| 312-586
| 6 |
|
5562 METROPCS, INC. |
358 |
|
2016-07-16 |
|
| 312-586
| 7 |
|
224C ONVOY, LLC |
358 |
|
2016-06-12 |
|
| 312-586
| 8 |
|
224C ONVOY, LLC |
358 |
|
2016-06-12 |
|
| 312-586
| 9 |
|
224C ONVOY, LLC |
358 |
|
2016-06-12 |
|
| 312-594
| A |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-594
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2008-12-21 |
|
| 312-594
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2008-12-21 |
|
| 312-594
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2008-12-21 |
|
| 312-594
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2008-12-21 |
|
| 312-594
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2008-12-21 |
|
| 312-594
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2008-12-21 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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