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PHONE NUMBER PREFIXES IN THE 231 AREA CODE

Thousand digits 231-531 Area Code & Prefix

(231) 531-0xxx
(231) 531-1xxx
(231) 531-2xxx
(231) 531-3xxx
(231) 531-4xxx
(231) 531-5xxx
(231) 531-6xxx
(231) 531-7xxx
(231) 531-8xxx
(231) 531-9xxx