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Phone Directory 312-929 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 929-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-929 Chicago, IL T-mobile Usa Cook Landline 04/27/2006

Other Series For Prefixes

312-9290###
312-9291###
312-9292###
312-9293###
312-9294###
312-9295###
312-9296###
312-9297###
312-9298###
312-9299###