Harvard University
BGP inherited
Cluster stats
| Netblocks | 32 · 364,527 IPv4 addresses |
| Registered in | United States (20) · France (1) |
| Cluster ID | 213596192 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 20 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
6 weekly snapshots · JSON
32
+3 netblocks since 2026-07-05
2026-07-05
peak 32
2026-07-26
IP Ranges (32)
⬇ 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 | ARIN | ASSIGNMENT | ● 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 | BGP | ANNOUNCED | ● 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 |
| 192.54.223.0/24 | 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 |
| 128.103.0.0/16 | Harvard University | ARIN | DIRECT ALLOCATION | ● medium |
| 140.247.0.0/16 | Harvard University | ARIN | DIRECT ALLOCATION | ● medium |
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: C
how networks compare →
62.5%
of checked blocks have valid RPKI ROA coverage
(20 of 32)
No discrepancies found among checked blocks.
NIC Handles
ABUSE3331-ARIN
AS10578
AS1742
DASHB-ARIN
DASHB-ARIN
DUMY-RIPE
DUMY-RIPE
HARVAR
HARVAR-Z
KENNY32-ARIN
KENNY32-ARIN
NETWO4930-ARIN
+8 more