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PHONE NUMBER PREFIXES IN THE 312 AREA CODE

Thousand digits 312-748 Area Code & Prefix

(312) 748-0xxx
(312) 748-1xxx
(312) 748-2xxx
(312) 748-3xxx
(312) 748-4xxx
(312) 748-5xxx
(312) 748-6xxx
(312) 748-7xxx
(312) 748-8xxx
(312) 748-9xxx