Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: Ashburn

Region: Virginia

Country: United States

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 54.165.21.40
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40638
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;54.165.21.40.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2026022501 1800 900 604800 86400

;; Query time: 31 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 26 05:00:15 CST 2026
;; MSG SIZE  rcvd: 105
Host info
40.21.165.54.in-addr.arpa domain name pointer ec2-54-165-21-40.compute-1.amazonaws.com.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
40.21.165.54.in-addr.arpa	name = ec2-54-165-21-40.compute-1.amazonaws.com.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
181.171.181.50 attack
2019-12-07T13:34:28.438181host3.slimhost.com.ua sshd[2834338]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.171.181.50  user=root
2019-12-07T13:34:30.208969host3.slimhost.com.ua sshd[2834338]: Failed password for root from 181.171.181.50 port 44588 ssh2
2019-12-07T13:43:31.671976host3.slimhost.com.ua sshd[2837687]: Invalid user lucas from 181.171.181.50 port 44562
2019-12-07T13:43:31.676710host3.slimhost.com.ua sshd[2837687]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.171.181.50
2019-12-07T13:43:31.671976host3.slimhost.com.ua sshd[2837687]: Invalid user lucas from 181.171.181.50 port 44562
2019-12-07T13:43:34.325498host3.slimhost.com.ua sshd[2837687]: Failed password for invalid user lucas from 181.171.181.50 port 44562 ssh2
2019-12-07T13:50:45.131851host3.slimhost.com.ua sshd[2840804]: Invalid user admin from 181.171.181.50 port 54936
2019-12-07T13:50:45.136952host3.slimhost.com.ua sshd[284
...
2019-12-07 22:09:39
114.69.232.130 attack
proto=tcp  .  spt=56641  .  dpt=25  .     (Found on   Dark List de Dec 07)     (279)
2019-12-07 22:08:48
200.77.186.181 attack
proto=tcp  .  spt=49204  .  dpt=25  .     (Found on   Blocklist de  Dec 06)     (284)
2019-12-07 21:54:10
216.99.112.253 attackspambots
Host Scan
2019-12-07 21:44:44
107.170.192.131 attack
Dec  7 14:24:19 cvbnet sshd[10757]: Failed password for root from 107.170.192.131 port 49100 ssh2
Dec  7 14:30:00 cvbnet sshd[10837]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.170.192.131 
...
2019-12-07 21:45:37
112.120.18.199 attackspambots
Host Scan
2019-12-07 21:57:21
103.45.145.251 attackspam
Host Scan
2019-12-07 22:06:07
222.186.42.4 attack
Dec  7 20:39:12 lcl-usvr-01 sshd[22603]: refused connect from 222.186.42.4 (222.186.42.4)
2019-12-07 21:39:59
46.38.144.146 attackbotsspam
Dec  7 15:29:38 ncomp postfix/smtpd[10073]: warning: unknown[46.38.144.146]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec  7 15:30:07 ncomp postfix/smtpd[10073]: warning: unknown[46.38.144.146]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec  7 15:30:35 ncomp postfix/smtpd[10073]: warning: unknown[46.38.144.146]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-12-07 22:04:06
45.55.184.78 attackspam
Dec  7 03:35:44 hanapaa sshd\[4107\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.55.184.78  user=root
Dec  7 03:35:46 hanapaa sshd\[4107\]: Failed password for root from 45.55.184.78 port 33830 ssh2
Dec  7 03:43:44 hanapaa sshd\[4947\]: Invalid user admin from 45.55.184.78
Dec  7 03:43:44 hanapaa sshd\[4947\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.55.184.78
Dec  7 03:43:47 hanapaa sshd\[4947\]: Failed password for invalid user admin from 45.55.184.78 port 43358 ssh2
2019-12-07 21:59:13
186.206.131.158 attackbotsspam
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.206.131.158  user=root
Failed password for root from 186.206.131.158 port 47748 ssh2
Invalid user mn from 186.206.131.158 port 59740
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.206.131.158
Failed password for invalid user mn from 186.206.131.158 port 59740 ssh2
2019-12-07 21:37:34
179.36.216.216 attackspam
Automatic report - Port Scan Attack
2019-12-07 21:38:03
113.53.213.168 attack
UTC: 2019-12-06 port: 23/tcp
2019-12-07 21:52:09
177.67.203.87 attack
Automatic report - Banned IP Access
2019-12-07 22:11:39
171.227.83.207 attack
Automatic report - Port Scan Attack
2019-12-07 21:55:32

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