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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-579 Area Code & Prefix

(312) 579-0xxx
(312) 579-1xxx
(312) 579-2xxx
(312) 579-3xxx
(312) 579-4xxx
(312) 579-5xxx
(312) 579-6xxx
(312) 579-7xxx
(312) 579-8xxx
(312) 579-9xxx