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 |
| 312-638
| 7 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-638
| 8 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-638
| 9 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-639
| A |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
| 312-639
| 0 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 1 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 2 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 3 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 4 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 5 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 6 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 7 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 8 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-639
| 9 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-12-03 |
|
| 312-646
| A |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
|
|
| 312-646
| 0 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-03-04 |
|
| 312-646
| 1 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-01 |
|
| 312-646
| 2 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-01 |
|
| 312-646
| 3 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-01 |
|
| 312-646
| 4 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-01 |
|
| 312-646
| 5 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2007-10-01 |
|
| 312-646
| 6 |
|
829J PAETEC ITEL, LLC |
358 |
|
2008-02-05 |
|
| 312-646
| 7 |
|
829J PAETEC ITEL, LLC |
358 |
|
2008-02-05 |
|
| 312-646
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2008-06-27 |
|
| 312-646
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2008-06-27 |
|
| 312-647
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-647
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-08-19 |
|
| 312-647
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-08-19 |
|
| 312-647
| 2 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2013-07-16 |
|
| 312-647
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-08-19 |
|
| 312-647
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-07-15 |
|
| 312-647
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-07-15 |
|
| 312-647
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-07-15 |
|
| 312-647
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-07-15 |
|
| 312-647
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-07-15 |
|
| 312-647
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-07-15 |
|
| 312-656
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-656
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-667
| A |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
|
|
| 312-667
| 0 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2012-10-22 |
|
| 312-667
| 1 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2012-10-22 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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