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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-381 Area Code & Prefix

(312) 381-0xxx
(312) 381-1xxx
(312) 381-2xxx
(312) 381-3xxx
(312) 381-4xxx
(312) 381-5xxx
(312) 381-6xxx
(312) 381-7xxx
(312) 381-8xxx
(312) 381-9xxx