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Phone Directory 312-334 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-334 Chicago, IL First Communications LLC Cook Landline 10/31/2000

Other Series For Prefixes

312-3340###
312-3341###
312-3342###
312-3343###
312-3344###
312-3345###
312-3346###
312-3347###
312-3348###
312-3349###