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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-663 Area Code & Prefix

(312) 663-0xxx
(312) 663-1xxx
(312) 663-2xxx
(312) 663-3xxx
(312) 663-4xxx
(312) 663-5xxx
(312) 663-6xxx
(312) 663-7xxx
(312) 663-8xxx
(312) 663-9xxx