AS166
Institute for Defense Analyses Unknown registered in United States
18IPv4 prefixes
0IPv6 prefixes
#12,771AS Rank
327/327RIS visibility
#1,923Rank in United States
1988-03-29Allocated
Institute for Defense Analyses (AS166) — Unknown, registered in United States. announces 18 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #1923. Allocated: 1988-03-29.
IPv4 18IPv6 0
Announced prefixes · 18
- v4 129.246.0.0/17 unknown
- v4 129.246.101.0/24 unknown
- v4 129.246.128.0/17 unknown
- v4 129.246.225.0/24 unknown
- v4 129.246.228.0/24 unknown
- v4 129.246.229.0/24 unknown
- v4 129.246.230.0/24 unknown
- v4 129.246.235.0/24 unknown
- v4 129.246.243.0/24 unknown
- v4 129.246.253.0/24 unknown
- v4 129.246.254.0/24 unknown
- v4 164.217.0.0/17 unknown
- v4 164.217.128.0/17 unknown
- v4 164.217.225.0/24 unknown
- v4 164.217.228.0/24 unknown
- v4 164.217.253.0/24 unknown
- v4 164.217.254.0/24 unknown
- v4 198.133.241.0/24 unknown
Routing: 18 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 18 |
| 2026-06-13 | 18 |
AS topology · Customer cone 1
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