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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-669 Area Code & Prefix

(312) 669-0xxx
(312) 669-1xxx
(312) 669-2xxx
(312) 669-3xxx
(312) 669-4xxx
(312) 669-5xxx
(312) 669-6xxx
(312) 669-7xxx
(312) 669-8xxx
(312) 669-9xxx