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 <<>> 104.21.39.191
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28169
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.39.191.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021801 1800 900 604800 86400

;; Query time: 18 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Feb 19 03:29:59 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 191.39.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 191.39.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
218.92.0.215 attackbots
Jul 13 17:45:40 rocket sshd[586]: Failed password for root from 218.92.0.215 port 17253 ssh2
Jul 13 17:45:42 rocket sshd[586]: Failed password for root from 218.92.0.215 port 17253 ssh2
Jul 13 17:45:44 rocket sshd[586]: Failed password for root from 218.92.0.215 port 17253 ssh2
...
2020-07-14 00:50:59
106.12.176.53 attack
 TCP (SYN) 106.12.176.53:47627 -> port 19656, len 44
2020-07-14 01:24:40
34.80.135.20 attack
ET CINS Active Threat Intelligence Poor Reputation IP group 12 - port: 28507 proto: tcp cat: Misc Attackbytes: 60
2020-07-14 01:26:59
182.155.219.79 attackbots
Port scan denied
2020-07-14 01:15:15
86.122.68.179 attackspam
Port scan denied
2020-07-14 01:06:47
107.170.91.121 attackspam
2020-07-12 23:18:29 server sshd[42093]: Failed password for invalid user git from 107.170.91.121 port 23961 ssh2
2020-07-14 01:19:27
90.176.150.123 attack
SSH brute-force attempt
2020-07-14 00:46:34
54.38.134.219 attack
C1,WP GET /suche/wp/wp-login.php
2020-07-14 01:19:53
51.254.220.20 attack
Jul 13 18:58:20 piServer sshd[1535]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.254.220.20 
Jul 13 18:58:23 piServer sshd[1535]: Failed password for invalid user test01 from 51.254.220.20 port 59941 ssh2
Jul 13 19:01:08 piServer sshd[1847]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.254.220.20 
...
2020-07-14 01:07:54
37.49.224.129 attack
Over 5 minutes of:
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:48
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:47
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:45
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:44
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:43
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:41
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:40
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:39
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:38
[remote login failure] from source 37.49.224.129, Monday, July 13, 2020 00:14:37
2020-07-14 01:11:59
116.132.6.182 attack
Port scan denied
2020-07-14 01:19:07
212.159.100.58 attackbots
Invalid user ss3server from 212.159.100.58 port 36378
2020-07-14 01:01:19
102.43.45.63 attack
Automatic report - XMLRPC Attack
2020-07-14 00:57:23
96.9.79.23 attack
Persistent port scanning [67 denied]
2020-07-14 00:44:08
51.75.246.176 attackbotsspam
Jul 13 14:16:28 rocket sshd[7646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.246.176
Jul 13 14:16:29 rocket sshd[7646]: Failed password for invalid user userftp from 51.75.246.176 port 38644 ssh2
Jul 13 14:19:37 rocket sshd[7903]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.246.176
...
2020-07-14 01:09:44

Recently Reported IPs

104.21.39.229 104.21.4.80 104.21.4.77 104.21.4.53
104.21.4.252 104.21.4.35 104.21.40.185 104.21.39.186
104.21.40.117 104.21.40.166 104.21.40.33 104.21.40.58
104.21.40.48 104.21.41.165 104.21.41.139 104.21.41.202
104.21.41.179 104.21.42.102 104.21.42.112 104.21.42.107