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 <<>> 104.21.9.52
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52944
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.9.52.			IN	A

;; AUTHORITY SECTION:
.			579	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 55 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:13:01 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 52.9.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 52.9.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
14.248.137.2 attack
20/3/8@23:52:39: FAIL: Alarm-Network address from=14.248.137.2
20/3/8@23:52:39: FAIL: Alarm-Network address from=14.248.137.2
...
2020-03-09 13:51:36
222.186.15.91 attackbotsspam
Mar  8 19:21:57 hpm sshd\[3360\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.91  user=root
Mar  8 19:21:59 hpm sshd\[3360\]: Failed password for root from 222.186.15.91 port 40876 ssh2
Mar  8 19:28:10 hpm sshd\[3826\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.91  user=root
Mar  8 19:28:12 hpm sshd\[3826\]: Failed password for root from 222.186.15.91 port 39003 ssh2
Mar  8 19:28:14 hpm sshd\[3826\]: Failed password for root from 222.186.15.91 port 39003 ssh2
2020-03-09 13:30:10
185.6.172.152 attackbotsspam
Mar  9 11:16:36 areeb-Workstation sshd[4777]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.6.172.152 
Mar  9 11:16:38 areeb-Workstation sshd[4777]: Failed password for invalid user Michelle from 185.6.172.152 port 48146 ssh2
...
2020-03-09 14:03:38
115.78.9.196 attackbots
CMS (WordPress or Joomla) login attempt.
2020-03-09 14:07:42
222.186.180.142 attackbots
Mar  9 03:24:12 firewall sshd[14250]: Failed password for root from 222.186.180.142 port 58696 ssh2
Mar  9 03:24:14 firewall sshd[14250]: Failed password for root from 222.186.180.142 port 58696 ssh2
Mar  9 03:24:17 firewall sshd[14250]: Failed password for root from 222.186.180.142 port 58696 ssh2
...
2020-03-09 14:25:44
180.66.207.67 attackspam
$f2bV_matches
2020-03-09 13:44:55
5.135.181.53 attackspambots
Mar  9 02:02:55 firewall sshd[12767]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.135.181.53
Mar  9 02:02:55 firewall sshd[12767]: Invalid user gameserver from 5.135.181.53
Mar  9 02:02:57 firewall sshd[12767]: Failed password for invalid user gameserver from 5.135.181.53 port 33104 ssh2
...
2020-03-09 13:47:10
201.149.22.37 attackbots
$f2bV_matches
2020-03-09 13:47:34
222.186.15.246 attackspambots
Mar  9 02:55:42 firewall sshd[13755]: Failed password for root from 222.186.15.246 port 61209 ssh2
Mar  9 02:55:44 firewall sshd[13755]: Failed password for root from 222.186.15.246 port 61209 ssh2
Mar  9 02:55:46 firewall sshd[13755]: Failed password for root from 222.186.15.246 port 61209 ssh2
...
2020-03-09 14:06:45
200.69.103.29 attackbotsspam
Mar  9 06:51:21 santamaria sshd\[13276\]: Invalid user tecnici from 200.69.103.29
Mar  9 06:51:21 santamaria sshd\[13276\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.69.103.29
Mar  9 06:51:23 santamaria sshd\[13276\]: Failed password for invalid user tecnici from 200.69.103.29 port 35443 ssh2
...
2020-03-09 14:27:24
222.168.18.227 attack
Mar  9 06:33:36 server sshd\[17951\]: Invalid user oracle from 222.168.18.227
Mar  9 06:33:36 server sshd\[17951\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.168.18.227 
Mar  9 06:33:38 server sshd\[17951\]: Failed password for invalid user oracle from 222.168.18.227 port 50203 ssh2
Mar  9 06:51:41 server sshd\[21465\]: Invalid user admin from 222.168.18.227
Mar  9 06:51:41 server sshd\[21465\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.168.18.227 
...
2020-03-09 14:26:03
185.156.73.57 attackspambots
03/09/2020-01:58:55.079084 185.156.73.57 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-03-09 14:08:03
202.137.131.162 attack
Email rejected due to spam filtering
2020-03-09 14:22:57
223.113.74.54 attackspambots
Mar  9 06:01:22 ns381471 sshd[26959]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.113.74.54
Mar  9 06:01:24 ns381471 sshd[26959]: Failed password for invalid user ftpuser from 223.113.74.54 port 46802 ssh2
2020-03-09 14:00:25
218.92.0.175 attackspam
Mar  9 06:43:36 server sshd[4004975]: Failed none for root from 218.92.0.175 port 39903 ssh2
Mar  9 06:43:38 server sshd[4004975]: Failed password for root from 218.92.0.175 port 39903 ssh2
Mar  9 06:43:41 server sshd[4004975]: Failed password for root from 218.92.0.175 port 39903 ssh2
2020-03-09 14:07:09

Recently Reported IPs

104.21.9.54 104.21.9.56 104.21.9.57 104.21.9.58
104.21.9.63 104.21.9.67 104.21.9.64 104.21.9.70
104.21.9.66 104.21.9.72 104.21.9.69 104.21.9.65
104.21.9.71 104.21.9.73 104.21.9.74 104.21.9.78
104.21.9.75 104.21.9.79 104.21.9.8 104.21.9.83