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Phone Directory 773-331 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 331-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-331 Chicago, IL Mci Worldcom Communications Cook Landline 01/14/2000

Other Series For Prefixes

773-3310###
773-3311###
773-3312###
773-3313###
773-3314###
773-3315###
773-3316###
773-3317###
773-3318###
773-3319###