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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-581 Area Code & Prefix

(312) 581-0xxx
(312) 581-1xxx
(312) 581-2xxx
(312) 581-3xxx
(312) 581-4xxx
(312) 581-5xxx
(312) 581-6xxx
(312) 581-7xxx
(312) 581-8xxx
(312) 581-9xxx