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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-939 Area Code & Prefix

(312) 939-0xxx
(312) 939-1xxx
(312) 939-2xxx
(312) 939-3xxx
(312) 939-4xxx
(312) 939-5xxx
(312) 939-6xxx
(312) 939-7xxx
(312) 939-8xxx
(312) 939-9xxx