AS1742 Harvard University 🇺🇸 US
Announcing 17 prefixes, seen at the RIS collectors.
IPv4 prefixes
13
204,544 (799 × /24)
IPv6 prefixes
4
1.1 × /32
Upstreams
4
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
2
transit customers observed
Customer cone
7
ASes reachable through it
Registry and operator data
- AS number
- AS1742
- Name
- Harvard University
- Organisation
- Harvard University
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1992-02-19
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 | 72,235 | 1,967 | 637 | CAIDA |
| AS174 Cogent Communications, LLC | 🇺🇸 US | 67,354 | 3,937 | 466 | CAIDA |
| AS11537 Internet2 | 🇺🇸 US | 27,572 | 23 | 62 | CAIDA |
| AS11164 Internet2 I2PX | 🇺🇸 US | 20,388 | 13 | 155 | 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 |
|---|---|---|---|---|---|
| AS40127 Longwood Medical and Academic Area (LMA) | 🇺🇸 US | 5 | 1 | 597 | CAIDA |
| AS13315 Harvard Business School | 🇺🇸 US | 0 | 3 | 132 | 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.