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Phone Directory 312-473 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 473-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-473 Chicago, IL Ymax Communications Corp. Cook Landline 11/15/2006

Other Series For Prefixes

312-4730###
312-4731###
312-4732###
312-4733###
312-4734###
312-4735###
312-4736###
312-4737###
312-4738###
312-4739###