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
4
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
Upstreams
Networks seen providing transit to this one
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS3356 Lumen (Level 3) | 🇺🇸 US | 70,695 | 2,082 | 370 | CAIDA |
| AS14041 University Corporation for Atmospheric Research | 🇺🇸 US | 59 | 10 | 553 | CAIDA |
| AS149433 FM Networks | 🇧🇩 BD | 0 | 3 | 4 | inferred |
| AS65501 | - | 0 | 0 | 2 | inferred |
Peers
Adjacencies that look settlement-free rather than transit
No peers observed at the collectors.
Downstreams
Networks this one appears to provide transit to
No downstreams observed at the collectors.
Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.