Harvard University
AS10578 is Harvard University (harvard.edu). It announces 24,832 IPv4 addresses in 4 prefixes, and 5 IPv6 prefixes.
United States· ARIN· allocated 1997-09-19· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States24,832 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- GIGAPOP-NE
- name
- Harvard University
- org
- HARVAR-Z
- org name
- Harvard University
- org address
- HUIT Network Services, Patrick McEvilly - Director, 784 Memorial Drive, Cambridge, MA, 02139
- org city
- Cambridge
- org country
- US
- country
- US
- source
- arin
- created
- 1997-09-19
- updated
- 2025-12-02
- abuse name
- Abuse
- abuse email
- abuse@harvard.edu
- abuse phone
- +1-617-495-3574
- abuse kind
- role
- abuse city
- Cambridge
- abuse country
- US
- admin name
- Patrick Mcevilly
- admin email
- patrick_mcevilly@harvard.edu
- admin phone
- +1-617-495-9205
- admin kind
- person
- admin city
- Cambridge
- admin country
- US
- tech
- BVM1-ARIN
- tech name
- Brian Mollo
- tech email
- bmollo@mit.edu
- tech phone
- +1-617-324-7322
- tech kind
- person
- tech city
- Cambridge
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.02%
- None here
- 0.00%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 18.2.0.0/19 | United States | not found | 4 | 2026-10-02 |
| 18.2.128.0/19 | United States | not found | 5 | 2026-10-02 |
| 18.2.192.0/19 | United States | not found | 17 | 2026-10-02 |
| 192.5.89.0/24 | United States | valid | 4 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:468:600::/40 | United States | not found | 12 | 2026-10-02 |
| 2001:504:2e::/48 | United States | not found | 20 | 2026-10-02 |
| 2603:40ff:2000::/36 | United States | not found | 2 | 2026-10-02 |
| 2603:40ff:4000::/36 | United States | not found | 7 | 2026-10-02 |
| 2603:40ff:6000::/36 | United States | not found | 18 | 2026-10-02 |
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