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 <<>> 104.21.12.20
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 35161
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.12.20.			IN	A

;; AUTHORITY SECTION:
.			385	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 62 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:30:19 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 20.12.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 20.12.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
103.8.119.166 attackspam
May  1 13:51:11 vpn01 sshd[3646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.8.119.166
May  1 13:51:13 vpn01 sshd[3646]: Failed password for invalid user mi from 103.8.119.166 port 38908 ssh2
...
2020-05-01 19:57:20
103.25.196.51 attack
scan z
2020-05-01 19:55:06
125.21.123.234 attackspam
Invalid user tabb from 125.21.123.234 port 38827
2020-05-01 19:45:04
177.85.119.243 attackbots
Unauthorized SSH login attempts
2020-05-01 20:14:26
188.234.247.110 attackspam
Invalid user super from 188.234.247.110 port 36158
2020-05-01 20:00:16
139.59.238.14 attackspambots
$f2bV_matches
2020-05-01 19:41:53
189.240.4.201 attack
May  1 13:47:09 PorscheCustomer sshd[22654]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.240.4.201
May  1 13:47:11 PorscheCustomer sshd[22654]: Failed password for invalid user testuser from 189.240.4.201 port 57748 ssh2
May  1 13:51:08 PorscheCustomer sshd[22782]: Failed password for root from 189.240.4.201 port 39714 ssh2
...
2020-05-01 20:04:13
175.197.233.197 attack
May  1 07:59:47 firewall sshd[3828]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.197.233.197
May  1 07:59:47 firewall sshd[3828]: Invalid user emily from 175.197.233.197
May  1 07:59:49 firewall sshd[3828]: Failed password for invalid user emily from 175.197.233.197 port 57020 ssh2
...
2020-05-01 19:37:50
222.186.42.136 attack
May  1 12:15:55 work-partkepr sshd\[3514\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.136  user=root
May  1 12:15:57 work-partkepr sshd\[3514\]: Failed password for root from 222.186.42.136 port 24639 ssh2
...
2020-05-01 20:17:08
113.134.221.102 attack
Invalid user tr from 113.134.221.102 port 5206
2020-05-01 19:48:49
180.250.108.133 attackbotsspam
May  1 12:19:08 l02a sshd[26807]: Invalid user augurio from 180.250.108.133
May  1 12:19:08 l02a sshd[26807]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.250.108.133 
May  1 12:19:08 l02a sshd[26807]: Invalid user augurio from 180.250.108.133
May  1 12:19:10 l02a sshd[26807]: Failed password for invalid user augurio from 180.250.108.133 port 51410 ssh2
2020-05-01 19:36:51
152.136.153.17 attackbots
May  1 10:05:51 host sshd[19429]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.136.153.17  user=root
May  1 10:05:52 host sshd[19429]: Failed password for root from 152.136.153.17 port 42096 ssh2
...
2020-05-01 19:40:46
1.2.166.53 attackbots
1588333875 - 05/01/2020 13:51:15 Host: 1.2.166.53/1.2.166.53 Port: 445 TCP Blocked
2020-05-01 19:55:43
140.143.228.18 attackbots
May  1 13:47:00 v22018086721571380 sshd[10421]: Failed password for invalid user rori from 140.143.228.18 port 43058 ssh2
2020-05-01 19:56:28
122.51.183.135 attack
May  1 13:19:16 server sshd[65100]: Failed password for invalid user gitlab from 122.51.183.135 port 60636 ssh2
May  1 13:24:40 server sshd[5191]: Failed password for root from 122.51.183.135 port 51948 ssh2
May  1 13:26:54 server sshd[7389]: Failed password for invalid user michal from 122.51.183.135 port 46298 ssh2
2020-05-01 19:46:00

Recently Reported IPs

125.63.35.90 104.21.12.201 104.21.12.199 104.21.12.204
104.21.12.217 104.21.12.224 104.21.12.241 104.21.12.205
104.21.12.196 104.21.12.31 104.21.12.27 104.21.12.252
104.21.12.50 104.21.13.104 104.21.12.68 104.21.12.80
104.21.12.8 104.21.13.108 125.63.39.218 104.21.13.123