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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-580 Area Code & Prefix

(312) 580-0xxx
(312) 580-1xxx
(312) 580-2xxx
(312) 580-3xxx
(312) 580-4xxx
(312) 580-5xxx
(312) 580-6xxx
(312) 580-7xxx
(312) 580-8xxx
(312) 580-9xxx