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 <<>> 104.21.51.136
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26526
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.51.136.			IN	A

;; AUTHORITY SECTION:
.			599	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 91 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 23:38:55 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 136.51.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 136.51.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
189.222.236.143 attack
Honeypot attack, port: 4567, PTR: 189.222.236.143.dsl.dyn.telnor.net.
2020-02-26 05:30:23
212.115.233.235 attack
445/tcp
[2020-02-25]1pkt
2020-02-26 05:29:55
27.74.94.10 attack
Honeypot attack, port: 81, PTR: localhost.
2020-02-26 06:01:04
106.53.66.103 attack
Feb 25 22:28:19 vpn01 sshd[7546]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.66.103
Feb 25 22:28:21 vpn01 sshd[7546]: Failed password for invalid user hadoop from 106.53.66.103 port 41022 ssh2
...
2020-02-26 05:42:29
51.91.157.101 attackbots
Feb 25 22:30:06 server sshd[1561311]: Failed password for invalid user sftptest from 51.91.157.101 port 55526 ssh2
Feb 25 22:36:11 server sshd[1562398]: Failed password for invalid user serverpilot from 51.91.157.101 port 45248 ssh2
Feb 25 22:41:59 server sshd[1563467]: Failed password for invalid user siva from 51.91.157.101 port 34968 ssh2
2020-02-26 05:46:35
114.32.195.105 attackbots
suspicious action Tue, 25 Feb 2020 13:35:14 -0300
2020-02-26 05:29:12
78.189.87.126 attack
Honeypot attack, port: 445, PTR: 78.189.87.126.static.ttnet.com.tr.
2020-02-26 05:35:59
203.189.206.109 attackbotsspam
Feb 25 20:56:46 h2812830 sshd[32081]: Invalid user cron from 203.189.206.109 port 13064
Feb 25 20:56:47 h2812830 sshd[32081]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.189.206.109
Feb 25 20:56:46 h2812830 sshd[32081]: Invalid user cron from 203.189.206.109 port 13064
Feb 25 20:56:48 h2812830 sshd[32081]: Failed password for invalid user cron from 203.189.206.109 port 13064 ssh2
Feb 25 22:15:00 h2812830 sshd[1979]: Invalid user uploader from 203.189.206.109 port 13064
...
2020-02-26 05:47:27
58.250.86.44 attack
Feb 25 20:12:30 localhost sshd\[1275\]: Invalid user sanchi from 58.250.86.44 port 44124
Feb 25 20:12:30 localhost sshd\[1275\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.250.86.44
Feb 25 20:12:32 localhost sshd\[1275\]: Failed password for invalid user sanchi from 58.250.86.44 port 44124 ssh2
2020-02-26 05:35:04
71.190.234.217 attackbotsspam
Feb 25 14:58:44 main sshd[21358]: Failed password for invalid user upload from 71.190.234.217 port 39831 ssh2
2020-02-26 06:00:41
212.47.232.148 attack
" "
2020-02-26 05:36:22
221.160.78.98 attackspambots
Feb 25 20:20:11 XXX sshd[8333]: Invalid user rr from 221.160.78.98 port 45163
2020-02-26 05:28:13
36.66.188.183 attackbotsspam
Feb 25 11:05:02 tdfoods sshd\[24729\]: Invalid user user from 36.66.188.183
Feb 25 11:05:02 tdfoods sshd\[24729\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.66.188.183
Feb 25 11:05:04 tdfoods sshd\[24729\]: Failed password for invalid user user from 36.66.188.183 port 57342 ssh2
Feb 25 11:08:58 tdfoods sshd\[25081\]: Invalid user user from 36.66.188.183
Feb 25 11:08:58 tdfoods sshd\[25081\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.66.188.183
2020-02-26 05:36:41
116.101.248.49 attackbots
445/tcp
[2020-02-25]1pkt
2020-02-26 05:24:36
223.17.34.131 attack
Honeypot attack, port: 5555, PTR: 131-34-17-223-on-nets.com.
2020-02-26 05:23:45

Recently Reported IPs

104.21.51.134 104.21.51.139 104.21.51.147 104.21.51.15
104.21.51.153 104.21.51.154 104.21.51.155 104.21.51.158
104.21.51.162 104.21.51.164 104.21.51.165 104.21.51.171
104.21.51.174 104.21.51.179 104.21.51.180 104.21.51.181
104.21.51.182 104.21.51.184 104.21.51.189 104.21.51.190