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: None

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 <<>> 104.21.72.121
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29004
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.121.			IN	A

;; AUTHORITY SECTION:
.			193	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 58 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:36:48 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 121.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 121.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
208.113.184.201 attackbots
Automatic report - XMLRPC Attack
2020-03-31 03:28:31
206.189.202.165 attackbots
Mar 30 20:32:44 sip sshd[10314]: Failed password for root from 206.189.202.165 port 42910 ssh2
Mar 30 20:40:45 sip sshd[12357]: Failed password for root from 206.189.202.165 port 58846 ssh2
2020-03-31 03:14:41
105.224.161.18 attackspam
Honeypot attack, port: 445, PTR: 105-224-161-18.north.dsl.telkomsa.net.
2020-03-31 03:05:48
187.250.108.113 attackbotsspam
port
2020-03-31 03:05:01
164.132.49.98 attack
Mar 30 16:16:42 work-partkepr sshd\[17979\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.132.49.98  user=root
Mar 30 16:16:43 work-partkepr sshd\[17979\]: Failed password for root from 164.132.49.98 port 44618 ssh2
...
2020-03-31 03:21:04
92.63.194.108 attackspambots
Mar 30 20:29:56 vpn01 sshd[17451]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.63.194.108
Mar 30 20:29:58 vpn01 sshd[17451]: Failed password for invalid user admin from 92.63.194.108 port 33169 ssh2
...
2020-03-31 03:31:26
222.66.141.74 attackbots
Brute force SMTP login attempted.
...
2020-03-31 03:16:38
222.186.31.135 attack
Mar 30 14:32:18 sip sshd[18052]: Failed password for root from 222.186.31.135 port 61645 ssh2
Mar 30 18:00:16 sip sshd[4768]: Failed password for root from 222.186.31.135 port 12049 ssh2
2020-03-31 03:23:53
222.73.44.146 attackspambots
Brute force SMTP login attempted.
...
2020-03-31 03:07:57
222.64.108.146 attack
Brute force SMTP login attempted.
...
2020-03-31 03:20:51
171.7.78.82 attackspam
Honeypot attack, port: 445, PTR: mx-ll-171.7.78-82.dynamic.3bb.co.th.
2020-03-31 03:02:26
129.211.94.30 attack
Mar 30 20:36:32 srv206 sshd[26639]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.94.30  user=root
Mar 30 20:36:34 srv206 sshd[26639]: Failed password for root from 129.211.94.30 port 40854 ssh2
Mar 30 20:50:57 srv206 sshd[26723]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.94.30  user=root
Mar 30 20:51:00 srv206 sshd[26723]: Failed password for root from 129.211.94.30 port 57318 ssh2
...
2020-03-31 03:11:34
170.82.182.225 attackspambots
$f2bV_matches
2020-03-31 03:33:33
109.94.116.127 attackspambots
Unauthorized connection attempt detected from IP address 109.94.116.127 to port 23
2020-03-31 03:39:16
51.77.144.50 attackbotsspam
SSH Brute-Force Attack
2020-03-31 03:33:17

Recently Reported IPs

104.21.71.74 104.21.72.106 104.21.71.96 104.21.71.4
104.21.72.130 104.21.72.141 104.21.72.155 104.21.72.105
104.21.72.189 104.21.71.46 104.21.72.2 104.18.31.98
104.21.72.114 104.21.72.192 104.21.72.179 104.21.72.233
104.21.72.205 104.21.72.211 104.21.72.242 104.21.72.43