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PHONE NUMBER PREFIXES IN THE 406 AREA CODE

Thousand digits 406-506 Area Code & Prefix

(406) 506-0xxx
(406) 506-1xxx
(406) 506-2xxx
(406) 506-3xxx
(406) 506-4xxx
(406) 506-5xxx
(406) 506-6xxx
(406) 506-7xxx
(406) 506-8xxx
(406) 506-9xxx