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Phone Directory 312-443 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 443-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-443 Chicago, IL Ameritech Illinois Cook Landline 11/11/2003

Other Series For Prefixes

312-4430###
312-4431###
312-4432###
312-4433###
312-4434###
312-4435###
312-4436###
312-4437###
312-4438###
312-4439###