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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-481 Area Code & Prefix

(312) 481-0xxx
(312) 481-1xxx
(312) 481-2xxx
(312) 481-3xxx
(312) 481-4xxx
(312) 481-5xxx
(312) 481-6xxx
(312) 481-7xxx
(312) 481-8xxx
(312) 481-9xxx