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PHONE NUMBER PREFIXES IN THE 231 AREA CODE

Thousand digits 231-537 Area Code & Prefix

(231) 537-0xxx
(231) 537-1xxx
(231) 537-2xxx
(231) 537-3xxx
(231) 537-4xxx
(231) 537-5xxx
(231) 537-6xxx
(231) 537-7xxx
(231) 537-8xxx
(231) 537-9xxx