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
312-733	Chicago	Cook	Landline
312-953	Chicago	Cook	Wireless
312-435	Chicago	Cook	Landline
312-651	Chicago	Cook	Landline
312-528	Chicago	Cook	Landline
312-237	Chicago	Cook	Wireless
312-542	Chicago	Cook	Landline
312-529	Chicago	Cook	Landline
312-346	Chicago	Cook	Landline
312-794	Chicago	Cook	Landline
312-737	Chicago	Cook	Landline
312-980	Chicago	Cook	Landline
312-227	Chicago	Cook	Landline
312-862	Chicago	Cook	Landline
312-888	Chicago	Cook	Landline
312-912	Chicago	Cook	Landline
312-330	Chicago	Cook	Wireless
312-817	Chicago	Cook	Landline
312-932	Chicago	Cook	Landline
312-554	Chicago	Cook	Landline

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