[ IP ]

128.104.22.61

#403,745Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #403,745(23 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen
Last seen: Fri Oct 02 2026 08:10:53 GM
PDNS hits (90 days): 24
Country: US
Snapshot: 1970-01-01

Network operated by University of Wisconsin Madison (UWM-3-Z) (WISC-HERD).

List rank history

30 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more accumulated passive-DNS observation evidence.

Whois — 128.104.22.61

Netname: WISC-HERD
Organization: University of Wisconsin Madison (UWM-3-Z)
Country: US
ASN: —

Registry record

WHOIS

Registry fields

Network range: 128.104.0.0 - 128.104.255.255
CIDR: 128.104.0.0/16
Network name: WISC-HERD
Net Handle: NET-128-104-0-0-1
Parent network: NET128 (NET-128-0-0-0-0)

Hosted domains — PDNS pivot

No hosted domains found for 128.104.22.61 in passive DNS yet.

# # 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: 128.104.0.0 - 128.104.255.255 CIDR: 128.104.0.0/16 NetName: WISC-HERD NetHandle: NET-128-104-0-0-1 Parent: NET128 (NET-128-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: University of Wisconsin Madison (UWM-3-Z) RegDate: 1986-01-29 Updated: 2024-01-19 Ref: https://rdap.arin.net/registry/ip/128.104.0.0 OrgName: University of Wisconsin Madison OrgId: UWM-3-Z Address: 1210 W Dayton Address: B332 City: Madison StateProv: WI PostalCode: 53706 Country: US RegDate: 2023-09-28 Updated: 2026-06-12 Ref: https://rdap.arin.net/registry/entity/UWM-3-Z OrgRoutingHandle: NOC212-ARIN OrgRoutingName: Network Operations Center OrgRoutingPhone: +1-608-263-4188 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/NOC212-ARIN OrgDNSHandle: UWMHP-ARIN OrgDNSName: University of Wisconsin Madison Hostmaster POC OrgDNSPhone: +1-608-263-4188 OrgDNSEmail: [email protected] OrgDNSRef: https://rdap.arin.net/registry/entity/UWMHP-ARIN OrgTechHandle: NOC212-ARIN OrgTechName: Network Operations Center OrgTechPhone: +1-608-263-4188 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/NOC212-ARIN OrgNOCHandle: NOC212-ARIN OrgNOCName: Network Operations Center OrgNOCPhone: +1-608-263-4188 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/NOC212-ARIN OrgAbuseHandle: UWMAP-ARIN OrgAbuseName: University of Wisconsin Madison Abuse POC OrgAbusePhone: +1-608-264-4357 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/UWMAP-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. #