AS104 University of Colorado at Boulder 🇺🇸 US
Announcing 25 prefixes, seen at the RIS collectors.
IPv4 prefixes
21
95,232 (372 × /24)
IPv6 prefixes
4
1 × /32
Upstreams
3
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
- AS104
- Name
- University of Colorado at Boulder
- Organisation
- University of Colorado at Boulder
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1987-04-09
- Scope
- Not Disclosed
- Peering policy
- Open
- PeeringDB
- net/21260
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 |
|---|---|---|---|---|
| 2001:468:501::/48 v6 | RPKI valid | 1 | 333311031153714041104 | 2026-09-18 |
| 2401:eee0:1c0::/42 v6 | RPKI invalid | 2 | 38001949858682149433104 | 2026-09-18 |
| 2401:eee0:200::/42 v6 | RPKI invalid | 2 | 38001949858682149433104 | 2026-09-18 |
| 2620:18f::/32 v6 | no ROA | 35 | 377213356104 | 2026-09-18 |