Canadial Know Who Called
← Area code 605

605-401 phone numbers

Numbers 605-401-0000 to 605-401-9999 are assigned to Ip Horizon LLC (rate centre SIOUX FLS, SD, NANPA abbreviation). 9 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 605-401