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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-979 Area Code & Prefix

(312) 979-0xxx
(312) 979-1xxx
(312) 979-2xxx
(312) 979-3xxx
(312) 979-4xxx
(312) 979-5xxx
(312) 979-6xxx
(312) 979-7xxx
(312) 979-8xxx
(312) 979-9xxx