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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-243 Area Code & Prefix

(312) 243-0xxx
(312) 243-1xxx
(312) 243-2xxx
(312) 243-3xxx
(312) 243-4xxx
(312) 243-5xxx
(312) 243-6xxx
(312) 243-7xxx
(312) 243-8xxx
(312) 243-9xxx