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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-289 Area Code & Prefix

(312) 289-0xxx
(312) 289-1xxx
(312) 289-2xxx
(312) 289-3xxx
(312) 289-4xxx
(312) 289-5xxx
(312) 289-6xxx
(312) 289-7xxx
(312) 289-8xxx
(312) 289-9xxx