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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-487 Area Code & Prefix

(312) 487-0xxx
(312) 487-1xxx
(312) 487-2xxx
(312) 487-3xxx
(312) 487-4xxx
(312) 487-5xxx
(312) 487-6xxx
(312) 487-7xxx
(312) 487-8xxx
(312) 487-9xxx