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Phone Directory 773-423 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 423-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-423 Chicago, IL Allegiance Telecom Cook Landline 02/27/1999

Other Series For Prefixes

773-4230###
773-4231###
773-4232###
773-4233###
773-4234###
773-4235###
773-4236###
773-4237###
773-4238###
773-4239###