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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-303 Area Code & Prefix

(312) 303-0xxx
(312) 303-1xxx
(312) 303-2xxx
(312) 303-3xxx
(312) 303-4xxx
(312) 303-5xxx
(312) 303-6xxx
(312) 303-7xxx
(312) 303-8xxx
(312) 303-9xxx