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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-664 Area Code & Prefix

(312) 664-0xxx
(312) 664-1xxx
(312) 664-2xxx
(312) 664-3xxx
(312) 664-4xxx
(312) 664-5xxx
(312) 664-6xxx
(312) 664-7xxx
(312) 664-8xxx
(312) 664-9xxx