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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-276 Area Code & Prefix

(312) 276-0xxx
(312) 276-1xxx
(312) 276-2xxx
(312) 276-3xxx
(312) 276-4xxx
(312) 276-5xxx
(312) 276-6xxx
(312) 276-7xxx
(312) 276-8xxx
(312) 276-9xxx