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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-674 Area Code & Prefix

(312) 674-0xxx
(312) 674-1xxx
(312) 674-2xxx
(312) 674-3xxx
(312) 674-4xxx
(312) 674-5xxx
(312) 674-6xxx
(312) 674-7xxx
(312) 674-8xxx
(312) 674-9xxx