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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-575 Area Code & Prefix

(312) 575-0xxx
(312) 575-1xxx
(312) 575-2xxx
(312) 575-3xxx
(312) 575-4xxx
(312) 575-5xxx
(312) 575-6xxx
(312) 575-7xxx
(312) 575-8xxx
(312) 575-9xxx