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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-507 Area Code & Prefix

(312) 507-0xxx
(312) 507-1xxx
(312) 507-2xxx
(312) 507-3xxx
(312) 507-4xxx
(312) 507-5xxx
(312) 507-6xxx
(312) 507-7xxx
(312) 507-8xxx
(312) 507-9xxx