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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-223 Area Code & Prefix

(312) 223-0xxx
(312) 223-1xxx
(312) 223-2xxx
(312) 223-3xxx
(312) 223-4xxx
(312) 223-5xxx
(312) 223-6xxx
(312) 223-7xxx
(312) 223-8xxx
(312) 223-9xxx