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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-739 Area Code & Prefix

(312) 739-0xxx
(312) 739-1xxx
(312) 739-2xxx
(312) 739-3xxx
(312) 739-4xxx
(312) 739-5xxx
(312) 739-6xxx
(312) 739-7xxx
(312) 739-8xxx
(312) 739-9xxx