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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-403 Area Code & Prefix

(312) 403-0xxx
(312) 403-1xxx
(312) 403-2xxx
(312) 403-3xxx
(312) 403-4xxx
(312) 403-5xxx
(312) 403-6xxx
(312) 403-7xxx
(312) 403-8xxx
(312) 403-9xxx