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Prefix — 312-200

Phone numbers that start with the 312-200 prefix are normally located in in Illinois. Below we've included some detailed information about this area including population size, demographics and household wealth to give you a sense of what the neighborhoods with 312-200-XXXX phone numbers are like.

Company(ies): AMERITECH ILLINOIS


View area code information for 312

All phone numbers starting with 312-200: