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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-904 Area Code & Prefix

(312) 904-0xxx
(312) 904-1xxx
(312) 904-2xxx
(312) 904-3xxx
(312) 904-4xxx
(312) 904-5xxx
(312) 904-6xxx
(312) 904-7xxx
(312) 904-8xxx
(312) 904-9xxx