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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-474 Area Code & Prefix

(312) 474-0xxx
(312) 474-1xxx
(312) 474-2xxx
(312) 474-3xxx
(312) 474-4xxx
(312) 474-5xxx
(312) 474-6xxx
(312) 474-7xxx
(312) 474-8xxx
(312) 474-9xxx