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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-734 Area Code & Prefix

(312) 734-0xxx
(312) 734-1xxx
(312) 734-2xxx
(312) 734-3xxx
(312) 734-4xxx
(312) 734-5xxx
(312) 734-6xxx
(312) 734-7xxx
(312) 734-8xxx
(312) 734-9xxx