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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-407 Area Code & Prefix

(312) 407-0xxx
(312) 407-1xxx
(312) 407-2xxx
(312) 407-3xxx
(312) 407-4xxx
(312) 407-5xxx
(312) 407-6xxx
(312) 407-7xxx
(312) 407-8xxx
(312) 407-9xxx