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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-230 Area Code & Prefix

(312) 230-0xxx
(312) 230-1xxx
(312) 230-2xxx
(312) 230-3xxx
(312) 230-4xxx
(312) 230-5xxx
(312) 230-6xxx
(312) 230-7xxx
(312) 230-8xxx
(312) 230-9xxx