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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-742 Area Code & Prefix

(312) 742-0xxx
(312) 742-1xxx
(312) 742-2xxx
(312) 742-3xxx
(312) 742-4xxx
(312) 742-5xxx
(312) 742-6xxx
(312) 742-7xxx
(312) 742-8xxx
(312) 742-9xxx