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Phone Directory 312-531 Detail

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Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-531 Hinsdale, IL New Cingular Wireless PCS Dupage Cell Number 02/11/1995

Other Series For Prefixes

312-5310###
312-5311###
312-5312###
312-5313###
312-5314###
312-5315###
312-5316###
312-5317###
312-5318###
312-5319###