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Phone Directory 312-504 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-504 Chicago, IL New Cingular Wireless PCS Cook Cell Number 11/11/2003

Other Series For Prefixes

312-5040###
312-5041###
312-5042###
312-5043###
312-5044###
312-5045###
312-5046###
312-5047###
312-5048###
312-5049###