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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-831 Area Code & Prefix

(312) 831-0xxx
(312) 831-1xxx
(312) 831-2xxx
(312) 831-3xxx
(312) 831-4xxx
(312) 831-5xxx
(312) 831-6xxx
(312) 831-7xxx
(312) 831-8xxx
(312) 831-9xxx