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 |
| 312-449
| 4 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 5 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 6 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 7 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 8 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-449
| 9 |
|
224C ONVOY, LLC |
358 |
|
2025-09-30 |
|
| 312-451
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-451
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-11-18 |
|
| 312-451
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-08-09 |
|
| 312-451
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-08-09 |
|
| 312-451
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-08-09 |
|
| 312-451
| 4 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-08-09 |
|
| 312-451
| 5 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-08-09 |
|
| 312-451
| 6 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-08-24 |
|
| 312-451
| 7 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-09-07 |
|
| 312-451
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2003-09-07 |
|
| 312-451
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2005-08-01 |
|
| 312-452
| A |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-10-28 |
|
| 312-452
| 0 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-10-28 |
|
| 312-452
| 1 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-10-28 |
|
| 312-452
| 2 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-10-28 |
|
| 312-452
| 3 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-10-28 |
|
| 312-452
| 4 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-10-28 |
|
| 312-452
| 5 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-27 |
|
| 312-452
| 6 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-27 |
|
| 312-452
| 7 |
|
224C ONVOY, LLC |
358 |
|
2026-01-05 |
|
| 312-452
| 8 |
|
224C ONVOY, LLC |
358 |
|
2026-01-05 |
|
| 312-452
| 9 |
|
224C ONVOY, LLC |
358 |
|
2026-01-05 |
|
| 312-459
| A |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 312-459
| 0 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-09-16 |
|
| 312-459
| 1 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-09-16 |
|
| 312-459
| 2 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-09-16 |
|
| 312-459
| 3 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-09-16 |
|
| 312-459
| 4 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-10-08 |
|
| 312-459
| 5 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-12-04 |
|
| 312-459
| 6 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2012-06-07 |
|
| 312-459
| 7 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2012-06-07 |
|
| 312-459
| 8 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-10-17 |
|
| 312-459
| 9 |
|
6529 T-MOBILE USA, INC. |
358 |
|
2011-09-16 |
|
| 312-465
| A |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2024-12-10 |
|
| 312-465
| 0 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-09-29 |
|
| 312-465
| 1 |
|
829J PAETEC ITEL, LLC |
358 |
|
2009-05-17 |
|
| 312-465
| 2 |
|
318J COMCAST IP PHONE, LLC |
358 |
|
2011-09-17 |
|
| 312-465
| 3 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-09-29 |
|
| 312-465
| 4 |
|
224C ONVOY, LLC |
358 |
|
2011-09-08 |
|
| 312-465
| 5 |
|
224C ONVOY, LLC |
358 |
|
2011-09-08 |
|
| 312-465
| 6 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-09-29 |
|
| 312-465
| 7 |
|
829J PAETEC ITEL, LLC |
358 |
|
2012-06-07 |
|
| 312-465
| 8 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2012-06-07 |
|
| 312-465
| 9 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2012-06-07 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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