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
312-466	Chicago	Cook	Landline
312-404	Chicago	Cook	Wireless
312-398	Chicago	Cook	Wireless
312-904	Chicago	Cook	Landline
312-908	Chicago	Cook	Landline
312-620	Chicago	Cook	Landline
312-732	Chicago	Cook	Landline
312-434	Chicago	Cook	Wireless
312-450	Chicago	Cook	Wireless
312-396	Chicago	Cook	Landline
312-340	Chicago	Cook	Wireless
312-834	Chicago	Cook	Landline
312-886	Chicago	Cook	Landline
312-489	Chicago	Cook	Wireless
312-480	Chicago	Cook	Wireless
312-221	Chicago	Cook	Wireless
312-470	Chicago	Cook	Landline
312-799	Chicago	Cook	Landline
312-775	Chicago	Cook	Landline
312-710	Chicago	Cook	Landline

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