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Phone Directory 312-263 Detail

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Illinois Chicago Central

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Example: (312) 263-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-263 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-2630###
312-2631###
312-2632###
312-2633###
312-2634###
312-2635###
312-2636###
312-2637###
312-2638###
312-2639###