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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-258 Area Code & Prefix

(312) 258-0xxx
(312) 258-1xxx
(312) 258-2xxx
(312) 258-3xxx
(312) 258-4xxx
(312) 258-5xxx
(312) 258-6xxx
(312) 258-7xxx
(312) 258-8xxx
(312) 258-9xxx