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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-850 Area Code & Prefix

(312) 850-0xxx
(312) 850-1xxx
(312) 850-2xxx
(312) 850-3xxx
(312) 850-4xxx
(312) 850-5xxx
(312) 850-6xxx
(312) 850-7xxx
(312) 850-8xxx
(312) 850-9xxx