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 |
| 312-517
| 0 |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2016-07-16 |
|
| 312-517
| 1 |
CHCGILDTDS3 |
5447 ACCESS ONE, INC. - IL |
358 |
|
2015-11-25 |
|
| 312-517
| 2 |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2017-03-26 |
|
| 312-517
| 3 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-03-26 |
|
| 312-517
| 4 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2015-03-26 |
|
| 312-517
| 5 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-03-27 |
|
| 312-517
| 6 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-03-27 |
|
| 312-517
| 7 |
CHCGILWUX1X |
7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. |
358 |
|
2015-03-27 |
|
| 312-517
| 8 |
CHCGILWUX1X |
7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. |
358 |
|
2015-03-27 |
|
| 312-517
| 9 |
CHCGILDT8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
358 |
|
2015-03-27 |
|
| 312-522
| A |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-522
| 0 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 1 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 2 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 3 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 4 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 5 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 6 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 7 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 8 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-522
| 9 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-10-24 |
|
| 312-523
| A |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 0 |
CHCGILWUX1X |
4717 PAETEC COMMUNICATIONS, INC. - IL |
358 |
|
2005-06-24 |
|
| 312-523
| 1 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
2010-11-05 |
|
| 312-523
| 2 |
CHCGILWUX1X |
4717 PAETEC COMMUNICATIONS, INC. - IL |
358 |
|
2005-06-24 |
|
| 312-523
| 3 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 4 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 5 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 6 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 7 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 8 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-523
| 9 |
CHCGILMF6MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-528
| A |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-528
| 0 |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-528
| 1 |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-528
| 2 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
1999-11-30 |
|
| 312-528
| 3 |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2001-02-27 |
|
| 312-528
| 4 |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-528
| 5 |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2019-12-26 |
|
| 312-528
| 6 |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-528
| 7 |
CHCGILTCDS4 |
7056 XO ILLINOIS, INC. |
358 |
|
2011-01-05 |
|
| 312-528
| 8 |
CHCGILCADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-528
| 9 |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2000-08-29 |
|
| 312-530
| A |
CHCGIL24XMD |
495J STRATUS NETWORKS |
358 |
|
|
|
| 312-530
| 0 |
CHCGIL245MD |
073H TELNYX LLC |
358 |
|
2020-11-08 |
|
| 312-530
| 1 |
CHCGIL24XMD |
495J STRATUS NETWORKS |
358 |
|
2020-09-20 |
|
| 312-530
| 2 |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2020-09-21 |
|
| 312-530
| 3 |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2020-09-21 |
|
| 312-530
| 4 |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2020-09-21 |
|
| 312-530
| 5 |
CHCGILMF4MD |
5562 METROPCS, INC. |
358 |
|
2020-09-21 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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