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Phone Directory 312-523 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 523-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-523 Chicago, IL Sprint Spectrum L.p. Cook Cell Number 06/30/2001

Other Series For Prefixes

312-5230###
312-5231###
312-5232###
312-5233###
312-5234###
312-5235###
312-5236###
312-5237###
312-5238###
312-5239###