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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-398 Area Code & Prefix

(312) 398-0xxx
(312) 398-1xxx
(312) 398-2xxx
(312) 398-3xxx
(312) 398-4xxx
(312) 398-5xxx
(312) 398-6xxx
(312) 398-7xxx
(312) 398-8xxx
(312) 398-9xxx