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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-404 Area Code & Prefix

(312) 404-0xxx
(312) 404-1xxx
(312) 404-2xxx
(312) 404-3xxx
(312) 404-4xxx
(312) 404-5xxx
(312) 404-6xxx
(312) 404-7xxx
(312) 404-8xxx
(312) 404-9xxx