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
312-466 Chicago Cook Landline
312-404 Chicago Cook Wireless
312-398 Chicago Cook Wireless
312-904 Chicago Cook Landline
312-908 Chicago Cook Landline
312-620 Chicago Cook Landline
312-732 Chicago Cook Landline
312-434 Chicago Cook Wireless
312-450 Chicago Cook Wireless
312-396 Chicago Cook Landline
312-340 Chicago Cook Wireless
312-834 Chicago Cook Landline
312-886 Chicago Cook Landline
312-489 Chicago Cook Wireless
312-480 Chicago Cook Wireless
312-221 Chicago Cook Wireless
312-470 Chicago Cook Landline
312-799 Chicago Cook Landline
312-775 Chicago Cook Landline
312-710 Chicago Cook Landline
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