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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-920 Area Code & Prefix

(312) 920-0xxx
(312) 920-1xxx
(312) 920-2xxx
(312) 920-3xxx
(312) 920-4xxx
(312) 920-5xxx
(312) 920-6xxx
(312) 920-7xxx
(312) 920-8xxx
(312) 920-9xxx