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
312-460	Chicago	Cook	Landline
312-666	Chicago	Cook	Landline
312-747	Chicago	Cook	Landline
312-573	Chicago	Cook	Landline
312-644	Chicago	Cook	Landline
312-619	Chicago	Cook	Wireless
312-937	Chicago	Cook	Wireless
312-488	Chicago	Cook	Landline
312-259	Chicago	Cook	Wireless
312-457	Chicago	Cook	Wireless
312-216	Chicago	Cook	Landline
312-922	Chicago	Cook	Landline
312-926	Chicago	Cook	Landline
312-317	Prospect Heights	Cook	Wireless
312-335	Chicago	Cook	Landline
312-294	Chicago	Cook	Landline
312-242	Chicago	Cook	Landline
312-234	Chicago	Cook	Landline
312-787	Chicago	Cook	Landline
312-901	Chicago	Cook	Wireless

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