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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-771 Area Code & Prefix

(312) 771-0xxx
(312) 771-1xxx
(312) 771-2xxx
(312) 771-3xxx
(312) 771-4xxx
(312) 771-5xxx
(312) 771-6xxx
(312) 771-7xxx
(312) 771-8xxx
(312) 771-9xxx