[ IP ]

141.211.4.57

#54,339Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #54,339(62 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen: Mon Jul 13 2026 22:35:14 GM
Last seen: Fri Aug 28 2026 18:40:38 GM
PDNS hits (90 days): 62
Country: US
Snapshot: 1970-01-01

Network operated by University of Michigan (UNIVER-118-Z) (UMICH-1).

List rank history

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

Whois — 141.211.4.57

Netname: UMICH-1
Organization: University of Michigan (UNIVER-118-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.
#



# start

NetRange:       141.211.0.0 - 141.211.255.255
CIDR:           141.211.0.0/16
NetName:        UMICH-1
NetHandle:      NET-141-211-0-0-1
Parent:         RIPE-ERX-141 (NET-141-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   University of Michigan (UNIVER-118-Z)
RegDate:        1990-08-02
Updated:        2018-01-08
Comment:        For DMCA info see http://www.umich.edu/~itua/copyright/
Ref:            https://rdap.arin.net/registry/ip/141.211.0.0


OrgName:        University of Michigan
OrgId:          UNIVER-118-Z
Address:        IT Communications Services
Address:        4251 Plymouth Road, Suite 2-2200
City:           Ann Arbor
StateProv:      MI
PostalCode:     48105-3640
Country:        US
RegDate:        2020-01-08
Updated:        2020-01-08
Ref:            https://rdap.arin.net/registry/entity/UNIVER-118-Z


OrgTechHandle: UA11-ORG-ARIN
OrgTechName:   UMnet Administration
OrgTechPhone:  +1-734-647-4200 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/UA11-ORG-ARIN

OrgAbuseHandle: IAI8-ARIN
OrgAbuseName:   IT Abuse Investigation
OrgAbusePhone:  +1-734-764-4357 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IAI8-ARIN

# end


# start

NetRange:       141.211.4.0 - 141.211.4.255
CIDR:           141.211.4.0/24
NetName:        UMICH-10027
NetHandle:      NET-141-211-4-0-1
Parent:         UMICH-1 (NET-141-211-0-0-1)
NetType:        Reassigned
OriginAS:       
Organization:   University of Michigan Information and Technology Services (UMITS)
RegDate:        2017-03-30
Updated:        2017-03-30
Comment:        For DMCA info see http://www.umich.edu/~itua/copyright/
Ref:            https://rdap.arin.net/registry/ip/141.211.4.0


OrgName:        University of Michigan Information and Technology Services
OrgId:          UMITS
Address:        Office of the CIO
Address:        4251 Plymouth Road, Suite 3-2500
City:           Ann Arbor
StateProv:      MI
PostalCode:     48105-3640
Country:        US
RegDate:        2017-03-21
Updated:        2017-03-21
Ref:            https://rdap.arin.net/registry/entity/UMITS


OrgAbuseHandle: IAI8-ARIN
OrgAbuseName:   IT Abuse Investigation
OrgAbusePhone:  +1-734-764-4357 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IAI8-ARIN

OrgTechHandle: ITSSS-ARIN
OrgTechName:   Information and Technology Services System Support
OrgTechPhone:  +1-734-763-6183 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ITSSS-ARIN

# end



#
# 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.
#

Hosted domains — PDNS pivot

Domain	Rank	First seen	Last seen	Hits
umich.edu	#2,128	2026-07-13	2026-08-28	62