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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-420 Area Code & Prefix

(312) 420-0xxx
(312) 420-1xxx
(312) 420-2xxx
(312) 420-3xxx
(312) 420-4xxx
(312) 420-5xxx
(312) 420-6xxx
(312) 420-7xxx
(312) 420-8xxx
(312) 420-9xxx