City: Ashburn
Region: Virginia
Country: United States
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
#
# 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: 52.0.0.0 - 52.79.255.255
CIDR: 52.64.0.0/12, 52.0.0.0/10
NetName: AT-88-Z
NetHandle: NET-52-0-0-0-1
Parent: NET52 (NET-52-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Amazon Technologies Inc. (AT-88-Z)
RegDate: 1991-12-19
Updated: 2024-02-05
Comment: Geofeed http://ip-ranges.amazonaws.com/geo-ip-feed.csv
Ref: https://rdap.arin.net/registry/ip/52.0.0.0
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
OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-555-0000
OrgNOCEmail: amzn-noc-contact@amazon.com
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-ARIN
OrgRoutingHandle: ARMP-ARIN
OrgRoutingName: AWS RPKI Management POC
OrgRoutingPhone: +1-206-555-0000
OrgRoutingEmail: aws-rpki-routing-poc@amazon.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/ARMP-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-555-0000
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN
OrgRoutingHandle: IPROU3-ARIN
OrgRoutingName: IP Routing
OrgRoutingPhone: +1-206-555-0000
OrgRoutingEmail: aws-routing-poc@amazon.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/IPROU3-ARIN
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-555-0000
OrgAbuseEmail: trustandsafety@support.aws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN
OrgDNSHandle: DNS1131-ARIN
OrgDNSName: DNS
OrgDNSPhone: +1-202-555-0000
OrgDNSEmail: ipmanagement+dns@amazon.com
OrgDNSRef: https://rdap.arin.net/registry/entity/DNS1131-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.
#; <<>> DiG 9.10.3-P4-Ubuntu <<>> 52.73.140.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 35131
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;52.73.140.57. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026081800 1800 900 604800 86400
;; Query time: 6 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Aug 18 22:34:45 CST 2026
;; MSG SIZE rcvd: 10557.140.73.52.in-addr.arpa domain name pointer ec2-52-73-140-57.compute-1.amazonaws.com.Server: 183.60.83.19
Address: 183.60.83.19#53
Non-authoritative answer:
57.140.73.52.in-addr.arpa name = ec2-52-73-140-57.compute-1.amazonaws.com.
Authoritative answers can be found from:| IP | Type | Details | Datetime |
|---|---|---|---|
| 40.68.58.245 | attackbots | RDP Brute-Force (Grieskirchen RZ2) |
2019-08-28 08:34:24 |
| 191.53.194.1 | attackbotsspam | Unauthorized connection attempt from IP address 191.53.194.1 on Port 587(SMTP-MSA) |
2019-08-28 08:18:05 |
| 194.60.255.89 | attackspambots | Unauthorized connection attempt from IP address 194.60.255.89 on Port 445(SMB) |
2019-08-28 08:45:56 |
| 103.82.47.34 | attack | Unauthorized connection attempt from IP address 103.82.47.34 on Port 445(SMB) |
2019-08-28 08:41:50 |
| 220.121.97.43 | attack | MultiHost/MultiPort Probe, Scan, Hack - |
2019-08-28 08:46:21 |
| 134.209.21.83 | attackspambots | Aug 27 13:40:43 web1 sshd\[15820\]: Invalid user yayan from 134.209.21.83 Aug 27 13:40:43 web1 sshd\[15820\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.21.83 Aug 27 13:40:46 web1 sshd\[15820\]: Failed password for invalid user yayan from 134.209.21.83 port 38928 ssh2 Aug 27 13:44:49 web1 sshd\[16209\]: Invalid user marcos from 134.209.21.83 Aug 27 13:44:49 web1 sshd\[16209\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.21.83 |
2019-08-28 08:18:46 |
| 177.221.177.168 | attackspam | Unauthorized connection attempt from IP address 177.221.177.168 on Port 587(SMTP-MSA) |
2019-08-28 08:16:47 |
| 111.250.88.175 | attack | firewall-block, port(s): 23/tcp |
2019-08-28 08:55:23 |
| 118.72.201.184 | attack | Invalid user admin from 118.72.201.184 port 17923 |
2019-08-28 08:51:35 |
| 62.28.34.125 | attackspambots | Aug 28 01:33:34 Ubuntu-1404-trusty-64-minimal sshd\[3487\]: Invalid user al from 62.28.34.125 Aug 28 01:33:34 Ubuntu-1404-trusty-64-minimal sshd\[3487\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.28.34.125 Aug 28 01:33:35 Ubuntu-1404-trusty-64-minimal sshd\[3487\]: Failed password for invalid user al from 62.28.34.125 port 1936 ssh2 Aug 28 01:44:44 Ubuntu-1404-trusty-64-minimal sshd\[11800\]: Invalid user grigor from 62.28.34.125 Aug 28 01:44:44 Ubuntu-1404-trusty-64-minimal sshd\[11800\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.28.34.125 |
2019-08-28 08:45:00 |
| 209.85.161.71 | attackspam | spam email from joyce@zbestfundraising.com |
2019-08-28 08:38:35 |
| 101.227.90.169 | attackspambots | Aug 28 02:38:43 srv206 sshd[8303]: Invalid user dn from 101.227.90.169 ... |
2019-08-28 08:39:44 |
| 190.121.25.248 | attackspambots | Invalid user tester from 190.121.25.248 port 38204 |
2019-08-28 08:42:20 |
| 185.144.60.152 | attackspam | Unauthorized connection attempt from IP address 185.144.60.152 on Port 445(SMB) |
2019-08-28 08:19:43 |
| 177.55.60.146 | attack | Unauthorized connection attempt from IP address 177.55.60.146 on Port 445(SMB) |
2019-08-28 08:47:37 |