[ IP ]

128.84.21.136

#190,735Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #190,735(34 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen
Last seen: Sun Sep 06 2026 12:11:52 GM
PDNS hits (90 days): 34
Country: US
Snapshot: 1970-01-01

Network operated by Cornell University (CORNEL) (CORNELL-NET).

List rank history

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

Whois — 128.84.21.136

Netname: CORNELL-NET
Organization: Cornell University (CORNEL)
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:       128.84.0.0 - 128.84.255.255
CIDR:           128.84.0.0/16
NetName:        CORNELL-NET
NetHandle:      NET-128-84-0-0-1
Parent:         NET128 (NET-128-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Cornell University (CORNEL)
RegDate:        1985-05-29
Updated:        2026-03-05
Ref:            https://rdap.arin.net/registry/ip/128.84.0.0


OrgName:        Cornell University
OrgId:          CORNEL
Address:        Cornell Information Technologies
Address:        757 Rhodes Hall
City:           Ithaca
StateProv:      NY
PostalCode:     14853
Country:        US
RegDate:        1984-08-10
Updated:        2025-03-27
Ref:            https://rdap.arin.net/registry/entity/CORNEL


OrgTechHandle: BRADL365-ARIN
OrgTechName:   Bradley, Scott 
OrgTechPhone:  +1-607-255-2626 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/BRADL365-ARIN

OrgTechHandle: MULDO2-ARIN
OrgTechName:   Muldoon, Trent 
OrgTechPhone:  +1-607-255-2245 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/MULDO2-ARIN

OrgAbuseHandle: NOC33962-ARIN
OrgAbuseName:   NOC
OrgAbusePhone:  +1-607-255-5500 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC33962-ARIN

RAbuseHandle: NOC33962-ARIN
RAbuseName:   NOC
RAbusePhone:  +1-607-255-5500 
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/NOC33962-ARIN

RTechHandle: MULDO2-ARIN
RTechName:   Muldoon, Trent 
RTechPhone:  +1-607-255-2245 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/MULDO2-ARIN

RTechHandle: BRADL365-ARIN
RTechName:   Bradley, Scott 
RTechPhone:  +1-607-255-2626 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/BRADL365-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.
#

Hosted domains — PDNS pivot

Domain	Rank	First seen	Last seen	Hits
cornell.edu	#965	2026-07-14	2026-09-06	34