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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-436 Area Code & Prefix

(312) 436-0xxx
(312) 436-1xxx
(312) 436-2xxx
(312) 436-3xxx
(312) 436-4xxx
(312) 436-5xxx
(312) 436-6xxx
(312) 436-7xxx
(312) 436-8xxx
(312) 436-9xxx