[ IP ]

18.161.21.71

#880,357Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #880,357(2 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen: Wed Aug 19 2026 19:34:59 GM
Last seen: Wed Aug 19 2026 19:49:21 GM
PDNS hits (90 days): 2
Country: US
Snapshot: 1970-01-01

Network operated by Amazon Technologies Inc. (AT-88-Z) (AT-88-Z).

List rank history

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

Whois — 18.161.21.71

Netname: AT-88-Z
Organization: Amazon Technologies Inc. (AT-88-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:       18.32.0.0 - 18.255.255.255
CIDR:           18.32.0.0/11, 18.128.0.0/9, 18.64.0.0/10
NetName:        AT-88-Z
NetHandle:      NET-18-32-0-0-1
Parent:         NET18 (NET-18-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Amazon Technologies Inc. (AT-88-Z)
RegDate:        2019-10-07
Updated:        2021-02-10
Ref:            https://rdap.arin.net/registry/ip/18.32.0.0



OrgName:        Amazon Technologies Inc.
OrgId:          AT-88-Z
Address:        410 Terry Ave N.
City:           Seattle
StateProv:      WA
PostalCode:     98109
Country:        US
RegDate:        2011-12-08
Updated:        2026-04-17
Comment:        All abuse reports MUST include:
Comment:        * src IP
Comment:        * dest IP (your IP)
Comment:        * dest port
Comment:        * Accurate date/timestamp and timezone of activity
Comment:        * Intensity/frequency (short log extracts)
Comment:        * Your contact details (phone and email) Without these we will be unable to identify the correct owner of the IP address at that point in time.
Ref:            https://rdap.arin.net/registry/entity/AT-88-Z


OrgRoutingHandle: IPROU3-ARIN
OrgRoutingName:   IP Routing
OrgRoutingPhone:  +1-206-555-0000 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IPROU3-ARIN

OrgRoutingHandle: ARMP-ARIN
OrgRoutingName:   AWS RPKI Management POC
OrgRoutingPhone:  +1-206-555-0000 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ARMP-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName:   Amazon EC2 Network Operations
OrgTechPhone:  +1-206-555-0000 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ANO24-ARIN

OrgDNSHandle: DNS1131-ARIN
OrgDNSName:   DNS
OrgDNSPhone:  +1-202-555-0000 
OrgDNSEmail:  [email protected]
OrgDNSRef:    https://rdap.arin.net/registry/entity/DNS1131-ARIN

OrgNOCHandle: AANO1-ARIN
OrgNOCName:   Amazon AWS Network Operations
OrgNOCPhone:  +1-206-555-0000 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/AANO1-ARIN

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName:   Amazon EC2 Abuse
OrgAbusePhone:  +1-206-555-0000 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AEA8-ARIN

# end


# start

NetRange:       18.160.0.0 - 18.161.255.255
CIDR:           18.160.0.0/15
NetName:        AMAZON-CF
NetHandle:      NET-18-160-0-0-1
Parent:         AT-88-Z (NET-18-32-0-0-1)
NetType:        Reallocated
OriginAS:       
Organization:   Amazon.com, Inc. (AMAZON-4)
RegDate:        2022-01-21
Updated:        2022-01-21
Ref:            https://rdap.arin.net/registry/ip/18.160.0.0



OrgName:        Amazon.com, Inc.
OrgId:          AMAZON-4
Address:        1918 8th Ave
City:           SEATTLE
StateProv:      WA
PostalCode:     98101-1244
Country:        US
RegDate:        1995-01-23
Updated:        2022-09-30
Ref:            https://rdap.arin.net/registry/entity/AMAZON-4


OrgRoutingHandle: IPROU3-ARIN
OrgRoutingName:   IP Routing
OrgRoutingPhone:  +1-206-555-0000 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IPROU3-ARIN

OrgRoutingHandle: ARMP-ARIN
OrgRoutingName:   AWS RPKI Management POC
OrgRoutingPhone:  +1-206-555-0000 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ARMP-ARIN

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName:   Amazon EC2 Abuse
OrgAbusePhone:  +1-206-555-0000 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgNOCHandle: AANO1-ARIN
OrgNOCName:   Amazon AWS Network Operations
OrgNOCPhone:  +1-206-555-0000 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/AANO1-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName:   Amazon EC2 Network Operations
OrgTechPhone:  +1-206-555-0000 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ANO24-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
grand-challenge.org	#327,710	2026-08-19	2026-08-19	2