AS5721 National Defense University 🇺🇸 US
Announcing 2 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
512 (2 × /24)
IPv6 prefixes
0
-
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS5721
- Name
- National Defense University
- Organisation
- National Defense University
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1995-09-06
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
2 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 216.21.18.0/24 v4 | no ROA | 42 | 377213356336575721 | 2026-09-18 |
| 216.21.19.0/24 v4 | no ROA | 40 | 345491299227735721 | 2026-09-18 |