[ IP ]

169.229.131.33

#363,055Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #363,055(16 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen
Last seen: Wed Sep 09 2026 03:12:35 GM
PDNS hits (90 days): 16
Country: US
Snapshot: 1970-01-01

Network operated by University of California - Office of the President (UCOP-Z) (UCSD-NET-169-228).

List rank history

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

Whois — 169.229.131.33

Netname: UCSD-NET-169-228
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:       169.229.0.0 - 169.233.255.255
CIDR:           169.229.0.0/16, 169.232.0.0/15, 169.230.0.0/15
NetName:        UCSD-NET-169-228
NetHandle:      NET-169-229-0-0-1
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/169.229.0.0


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


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

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

RTechHandle: UD14-ORG-ARIN
RTechName:   UCNet DNS Administrator
RTechPhone:  +1-510-987-0534 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/UD14-ORG-ARIN

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

# end


# start

NetRange:       169.229.0.0 - 169.229.255.255
CIDR:           169.229.0.0/16
NetName:        ISTDATA
NetHandle:      NET-169-229-0-0-2
Parent:         UCSD-NET-169-228 (NET-169-229-0-0-1)
NetType:        Reassigned
OriginAS:       
Organization:   University of California at Berkeley (UCAB-1)
RegDate:        1996-05-01
Updated:        2023-06-15
Comment:        DMCA Designated Agent is [email protected]
Ref:            https://rdap.arin.net/registry/ip/169.229.0.0


OrgName:        University of California at Berkeley
OrgId:          UCAB-1
Address:        IST - Telecommunications
Address:        ATTN Network Services and Operations
Address:        2850 Telegraph Ave
Address:        NOTE See Comment for DMCA INFO
City:           Berkeley
StateProv:      CA
PostalCode:     94705
Country:        US
RegDate:        1991-03-06
Updated:        2023-06-12
Comment:        DMCA Designated Agent is [email protected]
Ref:            https://rdap.arin.net/registry/entity/UCAB-1


OrgAbuseHandle: UCBSE-ARIN
OrgAbuseName:   UCB-SECURIT-ARIN
OrgAbusePhone:  +1-510-664-9000 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UCBSE-ARIN

OrgTechHandle: UCB-NOC-ARIN
OrgTechName:   IST Communication and Network Services
OrgTechPhone:  +1-510-664-9000 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/UCB-NOC-ARIN

OrgNOCHandle: UCB-NOC-ARIN
OrgNOCName:   IST Communication and Network Services
OrgNOCPhone:  +1-510-664-9000 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/UCB-NOC-ARIN

RTechHandle: UCB-NOC-ARIN
RTechName:   IST Communication and Network Services
RTechPhone:  +1-510-664-9000 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/UCB-NOC-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
berkeley.edu	#294	2026-07-14	2026-09-09	16