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
Announced prefixes
9 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 18.2.0.0/19 v4 | no ROA | 3 | 38229244901153710578 | 2026-09-18 |
| 18.2.128.0/19 v4 | no ROA | 11 | 149071116410578 | 2026-09-18 |
| 18.2.192.0/19 v4 | no ROA | 41 | 3454917410578 | 2026-09-18 |
| 192.5.89.0/24 v4 | RPKI valid | 3 | 38229244901153710578 | 2026-09-18 |
| 2001:468:600::/40 v6 | no ROA | 23 | 149071116410578 | 2026-09-18 |
| 2001:504:2e::/48 v6 | no ROA | 34 | 3454917410578 | 2026-09-18 |
| 2603:40ff:2000::/36 v6 | no ROA | 1 | 333311031153710578 | 2026-09-18 |
| 2603:40ff:4000::/36 v6 | no ROA | 10 | 149071116410578 | 2026-09-18 |
| 2603:40ff:6000::/36 v6 | no ROA | 34 | 3454917410578 | 2026-09-18 |