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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-543 Area Code & Prefix

(312) 543-0xxx
(312) 543-1xxx
(312) 543-2xxx
(312) 543-3xxx
(312) 543-4xxx
(312) 543-5xxx
(312) 543-6xxx
(312) 543-7xxx
(312) 543-8xxx
(312) 543-9xxx