AS399358 Anthropic, PBC 🇺🇸 US
Announcing 3 prefixes, seen at the RIS collectors.
IPv4 prefixes
1
512 (2 × /24)
IPv6 prefixes
2
2 × /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
- AS399358
- Name
- Anthropic, PBC
- Organisation
- Anthropic, PBC
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2023-09-20
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 |
|---|---|---|---|---|
| 160.79.104.0/23 v4 | RPKI valid | 47 | 3454913335399358 | 2026-09-18 |
| 2607:6bc0::/48 v6 | RPKI valid | 36 | 3800113335399358 | 2026-09-18 |
| 2607:6bc0:11::/48 v6 | RPKI valid | 32 | 34549174399358 | 2026-09-18 |