University of Washington
AS73 is University of Washington. It announces 238,080 IPv4 addresses in 10 prefixes, and 1 IPv6 prefixes.
United States· ARIN· allocated 1986-05-05· 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 States238,080 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- WASHINGTON-AS
- name
- University of Washington
- org
- UWND-Z
- org name
- University of Washington
- org address
- 4545 15th Ave NE, Seattle, WA, 98105
- org city
- Seattle
- org country
- US
- country
- US
- source
- arin
- created
- 1986-05-05
- updated
- 2021-10-01
- remarks
- The primary As for the University of Washington Campuses in the Puget Sound area, and also networks at our GR site dependent on AS73 for connectivity.
- abuse name
- University of Washington Security Operations
- abuse email
- abuse@uw.edu
- abuse phone
- +1-206-221-7000
- abuse kind
- role
- abuse city
- Seattle
- abuse country
- US
- admin name
- University of Washington Networks and Distributed
- admin email
- uw-noc@uw.edu
- admin phone
- +1-206-221-6000
- admin kind
- role
- admin city
- Seattle
- admin country
- US
- tech
- UW-NOC-ARIN
- tech name
- University of Washington Networks and Distributed
- tech email
- uw-noc@uw.edu
- tech phone
- +1-206-221-6000
- tech kind
- role
- tech city
- Seattle
- 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 IP780.03%
- anyip, geonix, geonode0.03%
- None here
- floppydata0.00%
- 0.00%
- None here
- Hosting IP15,3606.45%
- None here
- None here
- None here
- SSH IP7880.33%
- SMTP IP320.01%
- 0.04%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 69.91.192.0/18 | United States | not found | 19 | 2026-10-02 |
| 108.179.140.0/22 | United States | not found | 19 | 2026-10-02 |
| 128.95.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 128.208.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 140.142.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 173.250.160.0/19 | United States | not found | 19 | 2026-10-02 |
| 192.26.136.0/24 | United States | not found | 19 | 2026-10-02 |
| 192.42.144.0/24 | United States | not found | 19 | 2026-10-02 |
| 198.48.64.0/19 | United States | not found | 19 | 2026-10-02 |
| 205.175.96.0/19 | United States | not found | 19 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2607:4000::/32 | United States | not found | 20 | 2026-10-02 |
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