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
312-740	Chicago	Cook	Wireless
312-804	Chicago	Cook	Wireless
312-378	Chicago	Cook	Wireless
312-875	Chicago	Cook	Landline
312-654	Chicago	Cook	Landline
312-758	Chicago	Cook	Wireless
312-358	-	-	-
312-564	Chicago	Cook	Landline
312-634	Chicago	Cook	Landline
312-715	Chicago	Cook	Landline
312-452	Chicago	Cook	Wireless
312-230	Chicago	Cook	Landline
312-851	Chicago	Cook	Wireless
312-839	Chicago	Cook	Wireless
312-947	Chicago	Cook	Landline
312-971	Chicago	Cook	Landline
312-399	Chicago	Cook	Wireless
312-956	Chicago	Cook	Wireless
312-864	Chicago	Cook	Landline
312-607	Chicago	Cook	Wireless

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