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 |
| 312-967
| 8 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-10-04 |
|
| 312-967
| 9 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-10-04 |
|
| 312-971
| A |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 312-971
| 0 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 1 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 2 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 3 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 4 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 5 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 6 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 7 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 8 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-971
| 9 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-06-28 |
|
| 312-973
| A |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 312-973
| 0 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-15 |
|
| 312-973
| 1 |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-05-24 |
|
| 312-973
| 2 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-15 |
|
| 312-973
| 3 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2014-04-12 |
|
| 312-973
| 4 |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2014-04-12 |
|
| 312-973
| 5 |
CHCGILCPDS9 |
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2014-04-15 |
|
| 312-973
| 6 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-15 |
|
| 312-973
| 7 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-15 |
|
| 312-973
| 8 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-15 |
|
| 312-973
| 9 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-04-15 |
|
| 312-975
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-975
| 0 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-07-08 |
|
| 312-975
| 1 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-07-08 |
|
| 312-975
| 2 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-07-08 |
|
| 312-975
| 3 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-07-08 |
|
| 312-975
| 4 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-07-08 |
|
| 312-975
| 5 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-07-08 |
|
| 312-975
| 6 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-11-14 |
|
| 312-975
| 7 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-11-14 |
|
| 312-975
| 8 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-11-14 |
|
| 312-975
| 9 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-11-14 |
|
| 312-978
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-978
| 0 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 1 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 2 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 3 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 4 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 5 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 6 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 7 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 8 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-978
| 9 |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2013-12-06 |
|
| 312-981
| A |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2024-12-09 |
|
| 312-981
| 0 |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
|
|
| 312-981
| 1 |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2001-12-18 |
|
| 312-981
| 2 |
CHCGILSUDS2 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2001-12-07 |
|
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Last updated: Sat, 01 Aug 2026 03:19:33 UTC
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