Data as of Nov 8, 2026
Autonomous system

AS166

Institute for Defense Analyses

Announces 131,328 addresses in 18 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeRPKI
129.246.0.0/17
since Feb 2018
Business
129.246.101.0/24
since Apr 2023
Business
129.246.128.0/17
since Feb 2018
Business
129.246.225.0/24
since Apr 2023
Business
129.246.228.0/24
since Apr 2023
Business
129.246.229.0/24
since Apr 2023
Business
129.246.230.0/24
since Apr 2023
Business
129.246.235.0/24
since Mar 2026
Business
129.246.243.0/24
since Apr 2023
Business
129.246.253.0/24
since Apr 2023
Business
129.246.254.0/24
since Apr 2023
Business
164.217.0.0/17
since Sep 2022
Business
164.217.128.0/17
since Sep 2022
Business
164.217.225.0/24
since Jan 2022
Business
164.217.228.0/24
since Jan 2022
Business
164.217.253.0/24
since Jan 2022
Business
164.217.254.0/24
since Jan 2022
Business
198.133.241.0/24
since Oct 2016
Business

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it