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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-479 Area Code & Prefix

(312) 479-0xxx
(312) 479-1xxx
(312) 479-2xxx
(312) 479-3xxx
(312) 479-4xxx
(312) 479-5xxx
(312) 479-6xxx
(312) 479-7xxx
(312) 479-8xxx
(312) 479-9xxx