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Phone Directory 312-820 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-820 Chicago, IL Usa Mobility Wireless Cook Cell Number 11/11/2003

Other Series For Prefixes

312-8200###
312-8201###
312-8202###
312-8203###
312-8204###
312-8205###
312-8206###
312-8207###
312-8208###
312-8209###