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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-970 Area Code & Prefix

(312) 970-0xxx
(312) 970-1xxx
(312) 970-2xxx
(312) 970-3xxx
(312) 970-4xxx
(312) 970-5xxx
(312) 970-6xxx
(312) 970-7xxx
(312) 970-8xxx
(312) 970-9xxx