[ IP ]
128.208.61.21
#43,419Top IPs · 1M scope4 domains
Overview
Top IPs list rank
- 1M
- #43,419(4 domains)
- Hosted domains (90 days)
- 4
- Hosted domains (all time)
- 4
- First seen
- Mon Jul 13 2026 10:08:27 GM
- Last seen
- Sat Jul 25 2026 13:45:04 GM
- PDNS hits (90 days)
- 33
- Country
- US
- Snapshot
- 1970-01-01
Network operated by University of Washington (UWND-Z) (WASH-NSF).
List rank history
2 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more hosted domains in scope.
Whois — 128.208.61.21
- Netname
- WASH-NSF
- Organization
- University of Washington (UWND-Z)
- Country
- US
- ASN
- —
Full whois record
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 128.208.0.0 - 128.208.255.255 CIDR: 128.208.0.0/16 NetName: WASH-NSF NetHandle: NET-128-208-0-0-1 Parent: NET128 (NET-128-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: University of Washington (UWND-Z) RegDate: 1987-03-05 Updated: 2021-10-01 Ref: https://rdap.arin.net/registry/ip/128.208.0.0 OrgName: University of Washington OrgId: UWND-Z Address: 4545 15th Ave NE City: Seattle StateProv: WA PostalCode: 98105 Country: US RegDate: 2020-05-20 Updated: 2026-06-15 Ref: https://rdap.arin.net/registry/entity/UWND-Z OrgAbuseHandle: UWSO-ARIN OrgAbuseName: University of Washington Security Operations OrgAbusePhone: +1-206-221-7000 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/UWSO-ARIN OrgNOCHandle: UW-NOC-ARIN OrgNOCName: University of Washington Networks and Distributed OrgNOCPhone: +1-206-221-6000 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/UW-NOC-ARIN OrgTechHandle: UW-NOC-ARIN OrgTechName: University of Washington Networks and Distributed OrgTechPhone: +1-206-221-6000 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/UW-NOC-ARIN RTechHandle: UW-NOC-ARIN RTechName: University of Washington Networks and Distributed RTechPhone: +1-206-221-6000 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/UW-NOC-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #
Open ports — 128.208.61.21
Port scan not run for 128.208.61.21 yet. Probes are queued from passive DNS IPs in the worker pipeline.