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 |
| 312-757
| 8 |
|
224C ONVOY, LLC |
358 |
|
2013-08-15 |
|
| 312-757
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2013-11-14 |
|
| 312-761
| A |
CHCGILWUQMD |
148J TELENGY LLC |
358 |
|
|
|
| 312-761
| 0 |
|
148J TELENGY LLC |
358 |
|
2018-07-09 |
|
| 312-761
| 1 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-761
| 2 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-761
| 3 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-761
| 4 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-761
| 5 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-761
| 6 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2018-11-29 |
|
| 312-761
| 7 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2018-12-14 |
|
| 312-761
| 8 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-761
| 9 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2018-12-20 |
|
| 312-763
| A |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
|
|
| 312-763
| 0 |
|
5562 METROPCS, INC. |
358 |
|
2014-07-21 |
|
| 312-763
| 1 |
|
5562 METROPCS, INC. |
358 |
|
2014-07-21 |
|
| 312-763
| 2 |
|
318J COMCAST IP PHONE, LLC |
358 |
|
2014-06-26 |
|
| 312-763
| 3 |
|
318J COMCAST IP PHONE, LLC |
358 |
|
2014-06-26 |
|
| 312-763
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2014-06-27 |
|
| 312-763
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2014-06-27 |
|
| 312-763
| 6 |
|
318J COMCAST IP PHONE, LLC |
358 |
|
2014-06-27 |
|
| 312-763
| 7 |
|
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2014-06-27 |
|
| 312-763
| 8 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-08-30 |
|
| 312-763
| 9 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-08-30 |
|
| 312-764
| A |
CHCGILCGDS1 |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
|
|
| 312-764
| 0 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-12-16 |
|
| 312-764
| 1 |
|
224C ONVOY, LLC |
358 |
|
2016-12-11 |
|
| 312-764
| 2 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-12-16 |
|
| 312-764
| 3 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-12-16 |
|
| 312-764
| 4 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2016-12-05 |
|
| 312-764
| 5 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2016-12-05 |
|
| 312-764
| 6 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2016-12-05 |
|
| 312-764
| 7 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-12-16 |
|
| 312-764
| 8 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-12-16 |
|
| 312-764
| 9 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-12-16 |
|
| 312-766
| A |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
|
|
| 312-766
| 0 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 1 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 2 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 3 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 4 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 5 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 6 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 7 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 8 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-766
| 9 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2016-12-08 |
|
| 312-767
| A |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 312-767
| 0 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-06-15 |
|
| 312-767
| 1 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-06-15 |
|
| 312-767
| 2 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-06-15 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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