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: unknown

Region: unknown

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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.16.21.72
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9804
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.16.21.72.			IN	A

;; AUTHORITY SECTION:
.			147	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021602 1800 900 604800 86400

;; Query time: 62 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 12:35:16 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 72.21.16.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 72.21.16.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
190.94.18.2 attackspambots
Dec 11 14:17:45 hanapaa sshd\[19193\]: Invalid user jacek from 190.94.18.2
Dec 11 14:17:45 hanapaa sshd\[19193\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.94.18.2
Dec 11 14:17:47 hanapaa sshd\[19193\]: Failed password for invalid user jacek from 190.94.18.2 port 35508 ssh2
Dec 11 14:23:48 hanapaa sshd\[19818\]: Invalid user fuckyou from 190.94.18.2
Dec 11 14:23:48 hanapaa sshd\[19818\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.94.18.2
2019-12-12 08:26:45
159.203.197.169 attackspam
Brute force attack stopped by firewall
2019-12-12 08:38:56
42.242.200.58 attackspambots
DATE:2019-12-12 00:48:01, IP:42.242.200.58, PORT:1433 MSSQL brute force auth on honeypot server (honey-neo-dc)
2019-12-12 08:34:36
185.234.219.120 attackspam
Brute force attack stopped by firewall
2019-12-12 08:35:49
115.53.111.136 attackspambots
Telnet/23 MH Probe, BF, Hack -
2019-12-12 08:33:09
185.234.216.20 attack
Brute force attack stopped by firewall
2019-12-12 08:49:52
92.118.160.29 attackspambots
ET CINS Active Threat Intelligence Poor Reputation IP group 87 - port: 5908 proto: TCP cat: Misc Attack
2019-12-12 08:30:01
89.248.174.216 attack
Brute force attack stopped by firewall
2019-12-12 08:45:22
198.108.66.113 attack
Brute force attack stopped by firewall
2019-12-12 08:32:12
80.211.2.150 attackbots
Dec 11 16:45:08 mockhub sshd[22583]: Failed password for backup from 80.211.2.150 port 58264 ssh2
Dec 11 16:50:15 mockhub sshd[22859]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.2.150
...
2019-12-12 08:53:10
165.227.80.114 attack
fail2ban
2019-12-12 08:48:10
104.200.110.191 attackspambots
Dec 12 00:48:04 sso sshd[28511]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.200.110.191
Dec 12 00:48:06 sso sshd[28511]: Failed password for invalid user lisa from 104.200.110.191 port 46038 ssh2
...
2019-12-12 08:24:50
138.197.89.212 attackspam
Dec 11 19:33:18 TORMINT sshd\[1384\]: Invalid user terineshia from 138.197.89.212
Dec 11 19:33:18 TORMINT sshd\[1384\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.89.212
Dec 11 19:33:20 TORMINT sshd\[1384\]: Failed password for invalid user terineshia from 138.197.89.212 port 33692 ssh2
...
2019-12-12 08:41:20
51.255.35.41 attack
Dec 11 14:22:01 php1 sshd\[4718\]: Invalid user kang from 51.255.35.41
Dec 11 14:22:01 php1 sshd\[4718\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.255.35.41
Dec 11 14:22:03 php1 sshd\[4718\]: Failed password for invalid user kang from 51.255.35.41 port 53539 ssh2
Dec 11 14:26:59 php1 sshd\[5237\]: Invalid user aboo from 51.255.35.41
Dec 11 14:26:59 php1 sshd\[5237\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.255.35.41
2019-12-12 08:34:22
220.130.10.13 attackspambots
Dec 11 23:59:47 web8 sshd\[1262\]: Invalid user Toledo from 220.130.10.13
Dec 11 23:59:47 web8 sshd\[1262\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.130.10.13
Dec 11 23:59:49 web8 sshd\[1262\]: Failed password for invalid user Toledo from 220.130.10.13 port 9118 ssh2
Dec 12 00:05:41 web8 sshd\[4149\]: Invalid user urbielewicz from 220.130.10.13
Dec 12 00:05:41 web8 sshd\[4149\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.130.10.13
2019-12-12 08:19:31

Recently Reported IPs

104.16.21.163 104.16.21.77 104.16.212.134 104.16.213.72
104.16.214.252 104.16.215.252 104.16.215.85 104.16.217.76
104.16.218.20 104.16.218.250 104.16.218.76 104.16.218.93
104.16.219.107 104.16.219.34 104.16.219.40 104.16.219.77
104.16.22.163 104.16.22.17 104.16.22.72 104.16.22.77