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 |
| 312-437
| 9 |
|
5562 METROPCS, INC. |
358 |
|
|
|
| 312-438
| A |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
| 312-438
| 0 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 1 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 2 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 3 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 4 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 5 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 6 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 7 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 8 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-438
| 9 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2017-07-17 |
|
| 312-439
| A |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 312-439
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 4 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 5 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 6 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-439
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-12 |
|
| 312-446
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-446
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-448
| A |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
| 312-448
| 0 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-10-02 |
|
| 312-448
| 1 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-10-02 |
|
| 312-448
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2012-06-07 |
|
| 312-448
| 3 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2012-06-07 |
|
| 312-448
| 4 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2012-06-07 |
|
| 312-448
| 5 |
|
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2012-06-07 |
|
| 312-448
| 6 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-02-11 |
|
| 312-448
| 7 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-02-11 |
|
| 312-448
| 8 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-02-11 |
|
| 312-448
| 9 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2011-10-06 |
|
| 312-449
| A |
|
700J WAVENATION, LLC |
358 |
|
2025-09-14 |
|
| 312-449
| 0 |
|
700J WAVENATION, LLC |
358 |
|
2025-09-14 |
|
| 312-449
| 1 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 2 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 3 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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