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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-879 Area Code & Prefix

(312) 879-0xxx
(312) 879-1xxx
(312) 879-2xxx
(312) 879-3xxx
(312) 879-4xxx
(312) 879-5xxx
(312) 879-6xxx
(312) 879-7xxx
(312) 879-8xxx
(312) 879-9xxx