AS55 University of Pennsylvania 🇺🇸 US
Announcing 6 prefixes, seen at the RIS collectors.
IPv4 prefixes
5
262,400 (1,025 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
4
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
2
transit customers observed
Customer cone
3
ASes reachable through it
Registry and operator data
- AS number
- AS55
- Name
- University of Pennsylvania
- Organisation
- UPENN
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1985-12-18
- Network type
- Educational/Research
- Traffic levels
- 10-20Gbps
- Scope
- North America
- Peering policy
- Selective
- Website
- https://www.upenn.edu
- PeeringDB
- net/18475
- Facilities
- 1
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 | 70,662 | 2,068 | 111 | CAIDA |
| AS174 Cogent Communications, LLC | 🇺🇸 US | 65,732 | 4,017 | 92 | CAIDA |
| AS11537 Internet2 | 🇺🇸 US | 2,207 | 23 | 26 | CAIDA |
| AS11164 Internet2 I2PX | 🇺🇸 US | 1,267 | 13 | 84 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
No peers observed at the collectors.
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS69 University of Pennsylvania | 🇺🇸 US | 0 | 1 | 43 | CAIDA |
| AS46274 Penn Medicine | 🇺🇸 US | 0 | 2 | 20 | CAIDA |
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.