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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-340 Area Code & Prefix

(312) 340-0xxx
(312) 340-1xxx
(312) 340-2xxx
(312) 340-3xxx
(312) 340-4xxx
(312) 340-5xxx
(312) 340-6xxx
(312) 340-7xxx
(312) 340-8xxx
(312) 340-9xxx