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 <<>> 104.21.81.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6657
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.138.			IN	A

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

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:08 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
223.71.167.62 attack
Honeypot attack, port: 5555, PTR: PTR record not found
2019-12-28 20:15:06
176.109.23.251 attack
" "
2019-12-28 20:22:55
14.232.160.213 attackbotsspam
Invalid user issy from 14.232.160.213 port 49306
2019-12-28 20:37:55
188.166.117.213 attackbots
ssh failed login
2019-12-28 20:18:10
106.54.126.63 attackspam
Invalid user nfs from 106.54.126.63 port 35734
2019-12-28 20:25:00
206.189.177.133 attack
firewall-block, port(s): 8545/tcp
2019-12-28 20:21:48
131.0.95.249 attackspambots
Honeypot attack, port: 23, PTR: PTR record not found
2019-12-28 20:18:57
85.140.63.21 attack
Dec 28 07:22:01 cvbnet sshd[32165]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=85.140.63.21 
Dec 28 07:22:04 cvbnet sshd[32165]: Failed password for invalid user torri from 85.140.63.21 port 55433 ssh2
...
2019-12-28 20:20:36
123.127.45.152 attack
Dec 28 13:12:32 silence02 sshd[5810]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.127.45.152
Dec 28 13:12:33 silence02 sshd[5810]: Failed password for invalid user yoyo from 123.127.45.152 port 54546 ssh2
Dec 28 13:14:03 silence02 sshd[5858]: Failed password for mysql from 123.127.45.152 port 58201 ssh2
2019-12-28 20:35:14
196.43.171.28 attackbotsspam
Honeypot attack, port: 445, PTR: PTR record not found
2019-12-28 20:04:01
160.153.244.195 attackbots
Dec 28 16:38:29 itv-usvr-02 sshd[7116]: Invalid user nedderman from 160.153.244.195 port 52024
Dec 28 16:38:29 itv-usvr-02 sshd[7116]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=160.153.244.195
Dec 28 16:38:29 itv-usvr-02 sshd[7116]: Invalid user nedderman from 160.153.244.195 port 52024
Dec 28 16:38:31 itv-usvr-02 sshd[7116]: Failed password for invalid user nedderman from 160.153.244.195 port 52024 ssh2
Dec 28 16:48:05 itv-usvr-02 sshd[7238]: Invalid user gueguen from 160.153.244.195 port 48070
2019-12-28 20:16:32
118.25.25.207 attackbotsspam
Dec 28 06:21:49 ms-srv sshd[34494]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.25.207
Dec 28 06:21:51 ms-srv sshd[34494]: Failed password for invalid user micahlee from 118.25.25.207 port 51196 ssh2
2019-12-28 20:29:28
45.127.56.140 attackbotsspam
Telnet Server BruteForce Attack
2019-12-28 20:32:10
138.68.27.177 attackspambots
Dec 28 08:09:56 vmd17057 sshd\[421\]: Invalid user natascha from 138.68.27.177 port 33864
Dec 28 08:09:56 vmd17057 sshd\[421\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.27.177
Dec 28 08:09:58 vmd17057 sshd\[421\]: Failed password for invalid user natascha from 138.68.27.177 port 33864 ssh2
...
2019-12-28 20:46:05
192.99.47.10 attackspambots
192.99.47.10 - - [28/Dec/2019:10:39:59 +0000] "POST /wp-login.php HTTP/1.1" 200 6393 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
192.99.47.10 - - [28/Dec/2019:10:39:59 +0000] "POST /xmlrpc.php HTTP/1.1" 200 403 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2019-12-28 20:10:59

Recently Reported IPs

104.21.81.133 104.21.81.143 104.21.81.14 104.21.81.148
104.21.81.149 104.21.81.147 104.21.81.152 104.21.81.15
104.21.81.146 104.21.81.150 104.21.81.151 104.21.81.153
104.21.81.154 104.21.81.155 104.21.81.156 104.21.81.157
104.21.81.158 104.21.81.159 104.21.81.16 104.21.81.161