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
5
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
Announced prefixes
17 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 65.112.0.0/20 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 67.134.204.0/22 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 128.103.0.0/16 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 131.142.0.0/16 v4 | no ROA | 43 | 345491741742 | 2026-09-18 |
| 140.247.0.0/16 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 140.247.111.0/24 v4 | RPKI valid | 17 | 1490711164105781742 | 2026-09-18 |
| 140.247.152.0/24 v4 | RPKI valid | 17 | 1490711164105781742 | 2026-09-18 |
| 140.247.174.0/24 v4 | RPKI valid | 17 | 1490711164105781742 | 2026-09-18 |
| 140.247.236.0/24 v4 | RPKI valid | 17 | 1490711164105781742 | 2026-09-18 |
| 192.5.66.0/24 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 192.54.223.0/24 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 192.131.102.0/24 v4 | RPKI valid | 43 | 345491741742 | 2026-09-18 |
| 199.94.60.0/22 v4 | RPKI valid | 39 | 345491741742 | 2026-09-18 |
| 2602:fca9::/36 v6 | RPKI valid | 35 | 345491741742 | 2026-09-18 |
| 2607:fb60::/32 v6 | RPKI valid | 36 | 345491741742 | 2026-09-18 |
| 2607:fb60:2404::/46 v6 | RPKI valid | 23 | 1490711164105781742 | 2026-09-18 |
| 2620:32:8000::/48 v6 | no ROA | 35 | 345491741742 | 2026-09-18 |