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Phone Directory 773-427 Detail

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Illinois Chicago Central

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Example: (773) 427-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-427 Chicago, IL Ameritech Illinois Cook Landline 05/10/1999

Other Series For Prefixes

773-4270###
773-4271###
773-4272###
773-4273###
773-4274###
773-4275###
773-4276###
773-4277###
773-4278###
773-4279###