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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-427 Area Code & Prefix

(312) 427-0xxx
(312) 427-1xxx
(312) 427-2xxx
(312) 427-3xxx
(312) 427-4xxx
(312) 427-5xxx
(312) 427-6xxx
(312) 427-7xxx
(312) 427-8xxx
(312) 427-9xxx