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
312-433	Cook	Landline	Active
312-434	Cook	Cell Number	Active
312-435	Cook	Landline	Active
312-436	Cook	Landline	Active
312-437	Cook	Cell Number	Active
312-440	Cook	Landline	Active
312-441	Cook	Landline	Active
312-442	Cook	Landline	Active
312-443	Cook	Landline	Active
312-444	Cook	Landline	Active
312-445	Cook	Landline	Active
312-446	Cook	Cell Number	Active
312-447	Cook	Landline	Active
312-448	Cook	Cell Number	Active
312-449	Cook	Cell Number	Active
312-450	Cook	Cell Number	Active
312-451	Cook	Landline	Active
312-452	Cook	Cell Number	Active
312-453	Cook	Landline	Active
312-454	Cook	Landline	Active

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