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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-401 Area Code & Prefix

(312) 401-0xxx
(312) 401-1xxx
(312) 401-2xxx
(312) 401-3xxx
(312) 401-4xxx
(312) 401-5xxx
(312) 401-6xxx
(312) 401-7xxx
(312) 401-8xxx
(312) 401-9xxx