University of Washington

Data as of 2026-09-20
GLEIF verified
LEI
T8YS5W0N70BYCTHPA429
Registered name
University of Washington
Jurisdiction
US-WA
Ultimate parent
No parent on file in GLEIF
This organisation
Netblocks28 · 251,920 IPv4 addresses
IPv6 7 prefixes (largest 2001:1860::/32)
Also registered under this name 41 netblocks across 2 separate records
Record ID241848657
RegistryBGP
Owner jurisdictionUS-WA
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI T8YS5W0N70BYCTHPA429
Shared handles clustered on 12 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (28)

⬇ export CSV
CIDR Org name Registry Status Confidence
66.96.66.128/28 University of Washington ARIN ASSIGNMENT ● high
69.91.192.0/18 University of Washington BGP ANNOUNCED ● high
108.179.140.0/22 University of Washington ARIN DIRECT ALLOCATION ● high
128.95.0.0/16 University of Washington BGP ANNOUNCED ● high
128.208.0.0/16 University of Washington BGP ANNOUNCED ● high
140.142.0.0/16 University of Washington ARIN DIRECT ALLOCATION ● high
173.250.160.0/19 University of Washington BGP ANNOUNCED ● high
173.250.224.0/21 University of Washington BGP ANNOUNCED ● high
192.26.136.0/24 University of Washington ARIN DIRECT ALLOCATION ● high
192.42.144.0/24 University of Washington ARIN DIRECT ALLOCATION ● high
192.42.145.0/24 University of Washington ARIN DIRECT ALLOCATION ● high
198.32.195.0/24 University of Washington BGP ANNOUNCED ● high
198.48.64.0 – 198.48.78.255 University of Washington ARIN ALLOCATION ● high
198.48.64.0/19 University of Washington ARIN DIRECT ALLOCATION ● high
198.48.92.0/22 University of Washington BGP ANNOUNCED ● high
204.69.8.0/21 University of Washington ARIN DIRECT ALLOCATION ● high
205.175.96.0/19 University of Washington ARIN DIRECT ALLOCATION ● high
207.231.240.0/20 University of Washington BGP ANNOUNCED ● high
209.124.176.0/21 University of Washington BGP ANNOUNCED ● high
209.124.176.0/20 University of Washington BGP ANNOUNCED ● high
209.124.184.0/21 University of Washington BGP ANNOUNCED ● high
2001:504:b::/48 University of Washington BGP ANNOUNCED ● high
2001:1860::/32 University of Washington BGP ANNOUNCED ● high
2001:1860:4000::/34 University of Washington BGP ANNOUNCED ● high
2001:1860:8000::/34 University of Washington BGP ANNOUNCED ● high
2001:1860:c000::/34 University of Washington BGP ANNOUNCED ● high
2607:4000::/32 University of Washington BGP ANNOUNCED ● high
2607:4000:300::/40 University of Washington BGP ANNOUNCED ● high

IPv6 ranges (7)

CIDR
2001:1860::/32
2607:4000::/32
2001:1860:4000::/34
2001:1860:8000::/34
2001:1860:c000::/34
2607:4000:300::/40
2001:504:b::/48

Footprint over time

13 weekly snapshots · JSON
40 +15 netblocks since 2026-07-05
2026-07-05 peak 40 2026-09-20

Other domains hosted in this network

what's this?
washington.edu uw.edu bakerlab.org iris.edu airfire.org ctnlibrary.org communitydata.science

Network trust

what's this?
RPKI hygiene: D how networks compare →
27.5% of checked blocks have valid RPKI ROA coverage (11 of 40)
No discrepancies found among checked blocks.

NIC Handles

AS101 AS14221 AS64247 AS73 OWU2-ARIN OWU2-ARIN UW-NOC-ARIN UW-NOC-ARIN UW-NOC-ARIN UWND UWND-Z UWSO-ARIN