Area Code 312

All Information about Area Code 312
General Information about Area Code 312
Country United States
State / Province / Territory Illinois
Major City Chicago
Time Zone Central (UTC-06:00)

Active Prefixes in Area Code 312

Prefix Primary City County Phone Type
312-760 Chicago Cook Wireless
312-343 Chicago Cook Wireless
312-792 Chicago Cook Landline
312-284 Chicago Cook Landline
312-576 Chicago Cook Wireless
312-997 Chicago Cook Landline
312-369 Chicago Cook Wireless
312-406 Prospect Heights Cook Wireless
312-310 Glenview Cook Wireless
312-742 Chicago Cook Landline
312-361 Chicago Cook Landline
312-970 Chicago Cook Landline
312-408 Chicago Cook Landline
312-743 Chicago Cook Landline
312-635 Chicago Cook Landline
312-479 Chicago Cook Landline
312-490 Chicago Cook Wireless
312-391 Chicago Cook Wireless
312-707 Chicago Cook Landline
312-218 Chicago Cook Wireless
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