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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-434 Area Code & Prefix

(312) 434-0xxx
(312) 434-1xxx
(312) 434-2xxx
(312) 434-3xxx
(312) 434-4xxx
(312) 434-5xxx
(312) 434-6xxx
(312) 434-7xxx
(312) 434-8xxx
(312) 434-9xxx