Area Code 312

Area Code 312 information.

Area Code 312 Details
Country	United States
State/Province	Illinois
Major City	Chicago
Time Zone	Central (UTC-06:00)

Area Code 312 Prefixes

Prefix	County	Phone Type	Status
312-637	Cook	Landline	Active
312-638	Cook	Landline	Active
312-640	Cook	Landline	Active
312-641	Cook	Landline	Active
312-642	Cook	Landline	Active
312-643	Cook	Landline	Active
312-644	Cook	Landline	Active
312-645	Cook	Landline	Active
312-646	Cook	Landline	Active
312-647	Cook	Cell Number	Active
312-648	Cook	Landline	Active
312-649	Cook	Landline	Active
312-650	Cook	Landline	Active
312-651	Cook	Landline	Active
312-652	Cook	Landline	Active
312-653	Cook	Landline	Active
312-654	Cook	Landline	Active
312-655	Cook	Landline	Active
312-656	Cook	Cell Number	Active
312-657	Cook	Cell Number	Active

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