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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-437 Area Code & Prefix

(312) 437-0xxx
(312) 437-1xxx
(312) 437-2xxx
(312) 437-3xxx
(312) 437-4xxx
(312) 437-5xxx
(312) 437-6xxx
(312) 437-7xxx
(312) 437-8xxx
(312) 437-9xxx