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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-559 Area Code & Prefix

(312) 559-0xxx
(312) 559-1xxx
(312) 559-2xxx
(312) 559-3xxx
(312) 559-4xxx
(312) 559-5xxx
(312) 559-6xxx
(312) 559-7xxx
(312) 559-8xxx
(312) 559-9xxx