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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-725 Area Code & Prefix

(312) 725-0xxx
(312) 725-1xxx
(312) 725-2xxx
(312) 725-3xxx
(312) 725-4xxx
(312) 725-5xxx
(312) 725-6xxx
(312) 725-7xxx
(312) 725-8xxx
(312) 725-9xxx