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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-657 Area Code & Prefix

(312) 657-0xxx
(312) 657-1xxx
(312) 657-2xxx
(312) 657-3xxx
(312) 657-4xxx
(312) 657-5xxx
(312) 657-6xxx
(312) 657-7xxx
(312) 657-8xxx
(312) 657-9xxx