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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-561 Area Code & Prefix

(312) 561-0xxx
(312) 561-1xxx
(312) 561-2xxx
(312) 561-3xxx
(312) 561-4xxx
(312) 561-5xxx
(312) 561-6xxx
(312) 561-7xxx
(312) 561-8xxx
(312) 561-9xxx