AS394353 USC/ISI - B-root 🇺🇸 US
B.Root-Server-OPS. Announcing 21 prefixes, seen at the RIS collectors.
IPv4 prefixes
7
2,304 (9 × /24)
IPv6 prefixes
14
44 × /48
Upstreams
6
transit providers observed
Peers
1
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS394353
- Name
- USC/ISI - B-root
- Organisation
- USC/ISI B-ROOT
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2015-08-18
- Network type
- Non-Profit
- Scope
- Global
- Peering policy
- Restrictive
- IRR as-set
- AS-BROOT
- Website
- https://b.root-servers.org
- PeeringDB
- net/19692
- Exchanges
- 4
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
14 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 2001:500:84::/48 v6 | RPKI valid | 37 | 6939394353 | 2026-09-18 |
| 2001:500:200::/44 v6 | RPKI valid | 36 | 6939394353 | 2026-09-18 |
| 2001:500:200::/48 v6 | RPKI valid | 36 | 6939394353 | 2026-09-18 |
| 2001:500:201::/48 v6 | RPKI valid | 36 | 6939394353 | 2026-09-18 |
| 2001:500:204::/48 v6 | RPKI valid | 32 | 380012914226394353 | 2026-09-18 |
| 2001:500:205::/48 v6 | RPKI valid | 36 | 2448220080394353 | 2026-09-18 |
| 2001:500:206::/48 v6 | RPKI valid | 32 | 345491742285064112394353 | 2026-09-18 |
| 2001:500:207::/48 v6 | RPKI valid | 32 | 345491299394353 | 2026-09-18 |
| 2001:500:208::/48 v6 | RPKI valid | 31 | 345491299394353 | 2026-09-18 |
| 2001:500:209::/48 v6 | RPKI valid | 32 | 345491299394353 | 2026-09-28 |
| 2001:500:20a::/48 v6 | RPKI valid | 34 | 345496057264845394353 | 2026-10-03 |
| 2801:1b8:10::/44 v6 | RPKI valid | 36 | 6939394353 | 2026-09-18 |
| 2801:1b8:10::/48 v6 | RPKI valid | 36 | 6939394353 | 2026-09-18 |
| 2801:1b8:11::/48 v6 | RPKI valid | 36 | 6939394353 | 2026-09-18 |