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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-830 Area Code & Prefix

(312) 830-0xxx
(312) 830-1xxx
(312) 830-2xxx
(312) 830-3xxx
(312) 830-4xxx
(312) 830-5xxx
(312) 830-6xxx
(312) 830-7xxx
(312) 830-8xxx
(312) 830-9xxx