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Phone Directory 312-573 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 573-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-573 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-5730###
312-5731###
312-5732###
312-5733###
312-5734###
312-5735###
312-5736###
312-5737###
312-5738###
312-5739###