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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-390 Area Code & Prefix

(312) 390-0xxx
(312) 390-1xxx
(312) 390-2xxx
(312) 390-3xxx
(312) 390-4xxx
(312) 390-5xxx
(312) 390-6xxx
(312) 390-7xxx
(312) 390-8xxx
(312) 390-9xxx