AS397990 Williamslabs LLC 🇺🇸 US
Announcing 4 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
512 (2 × /24)
IPv6 prefixes
2
17 × /48
Upstreams
1
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
- AS397990
- Name
- Williamslabs LLC
- Organisation
- Williamslabs LLC
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2019-09-30
- Network type
- Educational/Research
- Traffic levels
- 100-1000Mbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS397990:AS-ALL
- PeeringDB
- net/21048
- Exchanges
- 1
- Facilities
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
4 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 23.144.112.0/24 v4 | no ROA | 47 | 6939397990 | 2026-09-18 |
| 44.31.141.0/24 v4 | no ROA | 47 | 6939397990 | 2026-09-18 |
| 2620:78:a000::/44 v6 | no ROA | 38 | 6939397990 | 2026-09-18 |
| 2620:78:a000::/48 v6 | no ROA | 20 | 377216939397990 | 2026-09-18 |