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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-315 Area Code & Prefix

(312) 315-0xxx
(312) 315-1xxx
(312) 315-2xxx
(312) 315-3xxx
(312) 315-4xxx
(312) 315-5xxx
(312) 315-6xxx
(312) 315-7xxx
(312) 315-8xxx
(312) 315-9xxx