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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-473 Area Code & Prefix

(312) 473-0xxx
(312) 473-1xxx
(312) 473-2xxx
(312) 473-3xxx
(312) 473-4xxx
(312) 473-5xxx
(312) 473-6xxx
(312) 473-7xxx
(312) 473-8xxx
(312) 473-9xxx