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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-470 Area Code & Prefix

(312) 470-0xxx
(312) 470-1xxx
(312) 470-2xxx
(312) 470-3xxx
(312) 470-4xxx
(312) 470-5xxx
(312) 470-6xxx
(312) 470-7xxx
(312) 470-8xxx
(312) 470-9xxx