AS4224 The Calyx Institute 🇺🇸 US
Announcing 3 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
512 (2 × /24)
IPv6 prefixes
1
1 × /48
Upstreams
1
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
- AS4224
- Name
- The Calyx Institute
- Organisation
- Calyx Institute
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1995-01-09
- Network type
- Educational/Research
- Traffic levels
- 10-20Gbps
- Scope
- Global
- Peering policy
- Open
- Website
- https://calyxinstitute.org
- PeeringDB
- net/4594
- Exchanges
- 1
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 |
|---|---|---|---|---|
| 162.247.72.0/24 v4 | no ROA | 44 | 3772169394224 | 2026-09-18 |
| 185.220.103.0/24 v4 | RPKI valid | 47 | 69394224 | 2026-09-18 |
| 2602:fef9:100::/48 v6 | no ROA | 38 | 69394224 | 2026-09-18 |