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Home > Area Codes > 312
312 Area Code
The 312 area code is located within the US. 312 covers this state: IL
Cities within the 312- area code include:
- Chicago
- Wheeling
- Roselle
- La Grange Park
- Hinsdale
- Northbrook
Here are the carriers for 312:
- Southwestern Bell Mobile Systems
- Adbeep
- United States Cellular Corp
- Heartland Communications
- American Messaging
- Broadwing Communications
- Arch Wireless Holdings
- Metrocall
- Blue Licenses Holding
- Sprint Spectrum
- T Mobile Usa
- Illinois Bell Tel Co
- Level 3 Communications
- Cellular Paging Usa
- Beepermart
- Geotek Communications
- Multi Computer Systems
Other area codes within the same state (IL) as (312) include:
To find out who owns a specific 312 phone number, run a reverse phone search!
Additional resources:
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