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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-220 Area Code & Prefix

(312) 220-0xxx
(312) 220-1xxx
(312) 220-2xxx
(312) 220-3xxx
(312) 220-4xxx
(312) 220-5xxx
(312) 220-6xxx
(312) 220-7xxx
(312) 220-8xxx
(312) 220-9xxx