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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-239 Area Code & Prefix

(312) 239-0xxx
(312) 239-1xxx
(312) 239-2xxx
(312) 239-3xxx
(312) 239-4xxx
(312) 239-5xxx
(312) 239-6xxx
(312) 239-7xxx
(312) 239-8xxx
(312) 239-9xxx