AS257 Navy Network Information Center (NNIC) 🇺🇸 US
Announcing 3 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
512 (2 × /24)
IPv6 prefixes
1
1 × /48
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
- AS257
- Name
- Navy Network Information Center (NNIC)
- Organisation
- Navy Network Information Center (NNIC)
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1988-12-22
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
3 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 204.102.229.0/24 v4 | no ROA | 43 | 3772164612152257 | 2026-09-18 |
| 205.155.65.0/24 v4 | no ROA | 43 | 3772164612152257 | 2026-09-18 |
| 2607:f380:804::/48 v6 | no ROA | 36 | 69392152257 | 2026-09-18 |