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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-203 Area Code & Prefix

(312) 203-0xxx
(312) 203-1xxx
(312) 203-2xxx
(312) 203-3xxx
(312) 203-4xxx
(312) 203-5xxx
(312) 203-6xxx
(312) 203-7xxx
(312) 203-8xxx
(312) 203-9xxx