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Phone Directory 773-831 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 831-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-831 Chicago, IL Level 3 Communications Cook Landline 07/22/1999

Other Series For Prefixes

773-8310###
773-8311###
773-8312###
773-8313###
773-8314###
773-8315###
773-8316###
773-8317###
773-8318###
773-8319###