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 |
| 312-825
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-05-14 |
|
| 312-826
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-826
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-826
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-14 |
|
| 312-837
| A |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
|
|
| 312-837
| 0 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2015-10-19 |
|
| 312-837
| 1 |
|
829J PAETEC ITEL, LLC |
358 |
|
2015-11-04 |
|
| 312-837
| 2 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2016-06-17 |
|
| 312-837
| 3 |
|
318J COMCAST IP PHONE, LLC |
358 |
|
2015-10-18 |
|
| 312-837
| 4 |
|
829J PAETEC ITEL, LLC |
358 |
|
2015-11-04 |
|
| 312-837
| 5 |
|
5562 METROPCS, INC. |
358 |
|
2015-10-26 |
|
| 312-837
| 6 |
|
5562 METROPCS, INC. |
358 |
|
2015-10-26 |
|
| 312-837
| 7 |
|
5562 METROPCS, INC. |
358 |
|
2015-10-26 |
|
| 312-837
| 8 |
|
5562 METROPCS, INC. |
358 |
|
2015-10-26 |
|
| 312-837
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-11-23 |
|
| 312-838
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-838
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-838
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-02-25 |
|
| 312-842
| A |
CHCGILCADS1 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 312-843
| A |
CHCGILCLDS7 |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
|
| 312-843
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 5 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2014-04-26 |
|
| 312-843
| 6 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2014-04-26 |
|
| 312-843
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-843
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-29 |
|
| 312-847
| A |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 312-847
| 0 |
|
224C ONVOY, LLC |
358 |
|
2019-08-30 |
|
| 312-847
| 1 |
|
224C ONVOY, LLC |
358 |
|
2019-08-30 |
|
| 312-847
| 2 |
|
224C ONVOY, LLC |
358 |
|
2019-08-30 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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