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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-368 Area Code & Prefix

(312) 368-0xxx
(312) 368-1xxx
(312) 368-2xxx
(312) 368-3xxx
(312) 368-4xxx
(312) 368-5xxx
(312) 368-6xxx
(312) 368-7xxx
(312) 368-8xxx
(312) 368-9xxx