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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-940 Area Code & Prefix

(312) 940-0xxx
(312) 940-1xxx
(312) 940-2xxx
(312) 940-3xxx
(312) 940-4xxx
(312) 940-5xxx
(312) 940-6xxx
(312) 940-7xxx
(312) 940-8xxx
(312) 940-9xxx