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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-227 Area Code & Prefix

(312) 227-0xxx
(312) 227-1xxx
(312) 227-2xxx
(312) 227-3xxx
(312) 227-4xxx
(312) 227-5xxx
(312) 227-6xxx
(312) 227-7xxx
(312) 227-8xxx
(312) 227-9xxx