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 |
| 312-721
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-721
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-19 |
|
| 312-722
| A |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2024-12-10 |
|
| 312-722
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 4 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 5 |
|
829J PAETEC ITEL, LLC |
358 |
|
2015-07-16 |
|
| 312-722
| 6 |
|
829J PAETEC ITEL, LLC |
358 |
|
2015-07-16 |
|
| 312-722
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-722
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-07-23 |
|
| 312-723
| A |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-723
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 4 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 5 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 6 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-723
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-724
| A |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 312-724
| 0 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 1 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 2 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 3 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 4 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 5 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 6 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 7 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 8 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-724
| 9 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2013-04-08 |
|
| 312-725
| A |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 312-725
| 0 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2008-12-15 |
|
| 312-725
| 1 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2009-08-24 |
|
| 312-725
| 2 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2009-09-06 |
|
| 312-725
| 3 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2009-09-06 |
|
| 312-725
| 4 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2009-09-06 |
|
| 312-725
| 5 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2009-08-24 |
|
| 312-725
| 6 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2009-09-06 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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