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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-344 Area Code & Prefix

(312) 344-0xxx
(312) 344-1xxx
(312) 344-2xxx
(312) 344-3xxx
(312) 344-4xxx
(312) 344-5xxx
(312) 344-6xxx
(312) 344-7xxx
(312) 344-8xxx
(312) 344-9xxx