AS10578 Harvard University 🇺🇸 US
Announcing 9 prefixes, seen at the RIS collectors.
IPv4 prefixes
4
24,832 (97 × /24)
IPv6 prefixes
5
12,545 × /48
Upstreams
3
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
7
transit customers observed
Customer cone
14
ASes reachable through it
Registry and operator data
- AS number
- AS10578
- Name
- Harvard University
- Organisation
- Northern Crossroads
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1997-09-19
- Network type
- Educational/Research
- Scope
- North America
- Peering policy
- Selective
- IRR as-set
- AS10578:AS-ALL
- Website
- http://www.nox.org
- PeeringDB
- net/7091
- Exchanges
- 2
- Facilities
- 3
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 |
|---|---|---|---|---|---|
| AS174 Cogent Communications, LLC | 🇺🇸 US | 66,047 | 3,955 | 89 | CAIDA |
| AS11537 Internet2 | 🇺🇸 US | 2,248 | 23 | 52 | CAIDA |
| AS11164 Internet2 I2PX | 🇺🇸 US | 1,266 | 13 | 195 | 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 |
|---|---|---|---|---|---|
| AS1742 Harvard University | 🇺🇸 US | 7 | 13 | 91 | CAIDA |
| AS54617 Massachusetts Green High Performance Computing Center, Inc | 🇺🇸 US | 0 | 3 | 41 | CAIDA |
| AS1650 Cambridge Public Schools | 🇺🇸 US | 0 | 1 | 17 | CAIDA |
| AS11499 Woods Hole Oceanographic Institution | 🇺🇸 US | 0 | 9 | 15 | CAIDA |
| AS14512 Bentley University | 🇺🇸 US | 0 | 1 | 4 | CAIDA |
| AS32389 Berklee College of Music | 🇺🇸 US | 0 | 1 | 4 | CAIDA |
| AS156 Northeastern University | 🇺🇸 US | 0 | 12 | 4 | 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.