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Phone Directory 312-400 Detail
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Illinois
Chicago
Central
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Area Code Prefixes
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Introduced
312-400
Chicago, IL
American Messaging (am)
Cook
Cell Number
04/13/2001
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Other Series For Prefixes
312-4000###
Search Complaints
312-4001###
Search Complaints
312-4002###
Search Complaints
312-4003###
Search Complaints
312-4004###
Search Complaints
312-4005###
Search Complaints
312-4006###
Search Complaints
312-4007###
Search Complaints
312-4008###
Search Complaints
312-4009###
Search Complaints