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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-723 Area Code & Prefix

(312) 723-0xxx
(312) 723-1xxx
(312) 723-2xxx
(312) 723-3xxx
(312) 723-4xxx
(312) 723-5xxx
(312) 723-6xxx
(312) 723-7xxx
(312) 723-8xxx
(312) 723-9xxx