[ IP ]

169.237.99.55

#286,127Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #286,127(10 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen
Last seen: Wed Aug 26 2026 20:42:54 GM
PDNS hits (90 days): 10
Country: US
Snapshot: 1970-01-01

Network operated by University of California - Office of the President (UCOP-Z) (UCNET-BLK).

List rank history

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

Whois — 169.237.99.55

Netname: UCNET-BLK
Organization: University of California - Office of the President (UCOP-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:       169.236.0.0 - 169.237.255.255
CIDR:           169.236.0.0/15
NetName:        UCNET-BLK
NetHandle:      NET-169-236-0-0-1
Parent:         NET169 (NET-169-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   University of California - Office of the President (UCOP-Z)
RegDate:        1995-08-04
Updated:        2021-10-05
Ref:            https://rdap.arin.net/registry/ip/169.236.0.0



OrgName:        University of California - Office of the President
OrgId:          UCOP-Z
Address:        Information Technology Services 
Address:        1111 Franklin Street
City:           Oakland
StateProv:      CA
PostalCode:     94607
Country:        US
RegDate:        2018-11-01
Updated:        2018-11-01
Ref:            https://rdap.arin.net/registry/entity/UCOP-Z


OrgAbuseHandle: NETWO575-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-510-987-0363 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO575-ARIN

OrgTechHandle: NETWO575-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-510-987-0363 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO575-ARIN

RAbuseHandle: NETWO577-ARIN
RAbuseName:   Network Operations
RAbusePhone:  +1-510-987-0534 
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/NETWO577-ARIN

RTechHandle: NETWO576-ARIN
RTechName:   Network Operations
RTechPhone:  +1-510-987-0363 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/NETWO576-ARIN

RNOCHandle: NETWO575-ARIN
RNOCName:   Network Operations
RNOCPhone:  +1-510-987-0363 
RNOCEmail:  [email protected]
RNOCRef:    https://rdap.arin.net/registry/entity/NETWO575-ARIN

# end


# start

NetRange:       169.237.0.0 - 169.237.255.255
CIDR:           169.237.0.0/16
NetName:        UCDAVIS2
NetHandle:      NET-169-237-0-0-1
Parent:         UCNET-BLK (NET-169-236-0-0-1)
NetType:        Reassigned
OriginAS:       
Organization:   University of California, Davis (UCD-1)
RegDate:        1997-01-07
Updated:        2014-04-11
Ref:            https://rdap.arin.net/registry/ip/169.237.0.0


OrgName:        University of California, Davis
OrgId:          UCD-1
Address:        NETWORK OPERATIONS CENTER
Address:        1 SHIELDS AVE
City:           DAVIS
StateProv:      CA
PostalCode:     95616-5270
Country:        US
RegDate:        1986-04-04
Updated:        2026-06-12
Ref:            https://rdap.arin.net/registry/entity/UCD-1


OrgTechHandle: YOOEV-ARIN
OrgTechName:   Yoo, Evan 
OrgTechPhone:  +1-530-754-4420 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/YOOEV-ARIN

OrgAbuseHandle: UCDA-ARIN
OrgAbuseName:   U C Davis Abuse
OrgAbusePhone:  +1-530-754-4357 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UCDA-ARIN

OrgNOCHandle: UCD-ARIN
OrgNOCName:   U C Davis
OrgNOCPhone:  +1-530-752-7656 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/UCD-ARIN

OrgTechHandle: KAWAG1-ARIN
OrgTechName:   Kawaguchi, Kevin 
OrgTechPhone:  +1-530-752-5025 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/KAWAG1-ARIN

RAbuseHandle: UCDA-ARIN
RAbuseName:   U C Davis Abuse
RAbusePhone:  +1-530-754-4357 
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/UCDA-ARIN

RNOCHandle: UCD-ARIN
RNOCName:   U C Davis
RNOCPhone:  +1-530-752-7656 
RNOCEmail:  [email protected]
RNOCRef:    https://rdap.arin.net/registry/entity/UCD-ARIN

RTechHandle: UCD-ARIN
RTechName:   U C Davis
RTechPhone:  +1-530-752-7656 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/UCD-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
ucdavis.edu	#21,941	2026-07-14	2026-08-26	10