Harvard University

Data as of 2026-09-13
BGP inherited
This organisation
Netblocks30 · 228,612 IPv4 addresses
IPv6 11 prefixes (largest 2607:fb60::/32)
Registered in United States (25) · France (1)
Record ID241848661
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 33 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (30)

⬇ export CSV
CIDR Org name Registry Status Confidence
5.39.108.132/30 Harvard University RIPE ASSIGNED PA ● high
18.2.0.0/19 Harvard University BGP ANNOUNCED ● high
18.2.128.0/19 Harvard University BGP ANNOUNCED ● high
18.2.192.0/19 Harvard University BGP ANNOUNCED ● high
65.112.0.0/20 Harvard University BGP ANNOUNCED ● high
67.134.204.0/22 Harvard University BGP ANNOUNCED ● high
128.103.0.0/16 Harvard University BGP ANNOUNCED ● high
131.142.0.0/16 Harvard University BGP ANNOUNCED ● high
140.247.0.0/16 Harvard University ARIN DIRECT ALLOCATION ● high
140.247.111.0/24 Harvard University BGP ANNOUNCED ● high
140.247.152.0/24 Harvard University BGP ANNOUNCED ● high
140.247.174.0/24 Harvard University BGP ANNOUNCED ● high
140.247.236.0/24 Harvard University BGP ANNOUNCED ● high
192.5.66.0/24 Harvard University BGP ANNOUNCED ● high
192.5.89.0/24 Harvard University BGP ANNOUNCED ● high
192.43.216.0/24 Harvard University ARIN DIRECT ALLOCATION ● high
192.54.223.0/24 Harvard University BGP ANNOUNCED ● high
192.131.102.0/24 Harvard University BGP ANNOUNCED ● high
199.94.60.0/22 Harvard University BGP ANNOUNCED ● high
2001:468:600::/40 Harvard University BGP ANNOUNCED ● high
2001:504:2e::/48 Harvard University BGP ANNOUNCED ● high
2602:fca9::/36 Harvard University BGP ANNOUNCED ● high
2603:40ff:2000::/36 Harvard University BGP ANNOUNCED ● high
2603:40ff:4000::/36 Harvard University BGP ANNOUNCED ● high
2603:40ff:6000::/36 Harvard University BGP ANNOUNCED ● high
2603:40ff:6407::/48 Harvard University BGP ANNOUNCED ● high
2603:40ff:6408::/48 Harvard University BGP ANNOUNCED ● high
2607:fb60::/32 Harvard University BGP ANNOUNCED ● high
2607:fb60:2404::/46 Harvard University BGP ANNOUNCED ● high
2620:32:8000::/48 Harvard University BGP ANNOUNCED ● high

IPv6 ranges (11)

CIDR
2607:fb60::/32
2602:fca9::/36
2603:40ff:2000::/36
2603:40ff:4000::/36
2603:40ff:6000::/36
2001:468:600::/40
2607:fb60:2404::/46
2001:504:2e::/48
2603:40ff:6407::/48
2603:40ff:6408::/48
2620:32:8000::/48

Footprint over time

12 weekly snapshots · JSON
37 +8 netblocks since 2026-07-05
2026-07-05 peak 37 2026-09-13

Other domains hosted in this network

what's this?
lumendatabase.org harvard.edu hbs.edu netdatadirectory.org

Network trust

what's this?
RPKI hygiene: C how networks compare →
67.6% of checked blocks have valid RPKI ROA coverage (25 of 37)
No discrepancies found among checked blocks.

NIC Handles

ABUSE3331-ARIN ABUSE3331-ARIN AS10578 AS1742 DASHB-ARIN DASHB-ARIN DASHB-ARIN DASHB-ARIN DUMY-RIPE DUMY-RIPE HARVAR HARVAR +21 more