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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-689 Area Code & Prefix

(312) 689-0xxx
(312) 689-1xxx
(312) 689-2xxx
(312) 689-3xxx
(312) 689-4xxx
(312) 689-5xxx
(312) 689-6xxx
(312) 689-7xxx
(312) 689-8xxx
(312) 689-9xxx