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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-328 Area Code & Prefix

(312) 328-0xxx
(312) 328-1xxx
(312) 328-2xxx
(312) 328-3xxx
(312) 328-4xxx
(312) 328-5xxx
(312) 328-6xxx
(312) 328-7xxx
(312) 328-8xxx
(312) 328-9xxx