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PHONE NUMBER PREFIXES IN THE 406 AREA CODE

Thousand digits 406-856 Area Code & Prefix

(406) 856-0xxx
(406) 856-1xxx
(406) 856-2xxx
(406) 856-3xxx
(406) 856-4xxx
(406) 856-5xxx
(406) 856-6xxx
(406) 856-7xxx
(406) 856-8xxx
(406) 856-9xxx