Data as of Nov 6, 2026
Autonomous system

AS22215

Black Hills State University

Announces 2,304 addresses in 8 prefixes. None of it is anonymizer space.

Type
Education
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
198.177.154.0/24
since Sep 2005
Business
204.52.252.0/24
since Jul 2022
Business
206.176.19.0/24
since Feb 2026
BusinessSouth Dakota State Government
206.176.24.0/24
since Feb 2026
BusinessSouth Dakota State Government
206.176.39.0/24
since Feb 2026
BusinessSouth Dakota State Government
206.176.40.0/23BusinessSouth Dakota State Government
206.176.42.0/24
since Feb 2026
BusinessSouth Dakota State Government
206.176.44.0/24
since Feb 2026
BusinessSouth Dakota State Government

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it