Duke University
AS13371 is Duke University (duke.edu). It announces 151,808 IPv4 addresses in 5 prefixes, and 2 IPv6 prefixes.
United States· ARIN· allocated 2006-10-03· 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 States151,808 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- DUKE-INTERCHANGE
- name
- Duke University
- org
- DUKEUN
- org name
- Duke University
- org address
- 334 Blackwell St., Suite 2106, Durham, NC, 27701
- org city
- Durham
- org country
- US
- country
- US
- source
- arin
- created
- 2006-10-03
- updated
- 2012-03-02
- abuse name
- Duke University Hostmaster
- abuse email
- datacom-hostmaster@duke.edu
- abuse phone
- +1-919-684-2200
- abuse kind
- role
- abuse city
- Durham
- abuse country
- US
- admin name
- Duke University Hostmaster
- admin email
- datacom-hostmaster@duke.edu
- admin phone
- +1-919-684-2200
- admin kind
- role
- admin city
- Durham
- admin country
- US
- tech name
- Duke University Hostmaster
- tech email
- datacom-hostmaster@duke.edu
- tech phone
- +1-919-684-2200
- tech kind
- role
- tech city
- Durham
- 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.
- VPN IP400.03%
- anyip, geonode, proxyrack0.03%
- None here
- floppydata0.00%
- None here
- None here
- Hosting IP5,8883.88%
- None here
- None here
- None here
- SSH IP7750.51%
- SMTP IP1190.08%
- 0.02%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 67.159.64.0/18 | United States | not found | 19 | 2026-10-02 |
| 152.3.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 152.16.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 152.22.224.0/20 | United States | valid | 17 | 2026-10-02 |
| 198.86.29.0/24 | United States | valid | 19 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2600:2704:100::/48 | United States | valid | 20 | 2026-10-02 |
| 2620:0:690::/47 | United States | not found | 20 | 2026-10-02 |
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