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 <<>> 104.21.16.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51152
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.4.			IN	A

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

;; Query time: 62 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 18:15:09 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 4.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 4.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
139.59.78.248 attack
[27/Jun/2020:00:45:40 +0200] "GET /bitrix/admin/ HTTP/1.1"
2020-06-27 17:59:27
183.134.90.250 attack
2020-06-27T07:54:42.644362sd-86998 sshd[44101]: Invalid user ca from 183.134.90.250 port 54092
2020-06-27T07:54:42.649872sd-86998 sshd[44101]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.134.90.250
2020-06-27T07:54:42.644362sd-86998 sshd[44101]: Invalid user ca from 183.134.90.250 port 54092
2020-06-27T07:54:44.913337sd-86998 sshd[44101]: Failed password for invalid user ca from 183.134.90.250 port 54092 ssh2
2020-06-27T07:57:14.442389sd-86998 sshd[44434]: Invalid user abhijeet from 183.134.90.250 port 54330
...
2020-06-27 18:20:18
134.209.30.155 attackbotsspam
PHI,DEF GET /wordpress/wp-login.php
2020-06-27 18:29:29
58.33.35.82 attackspambots
Jun 27 12:02:10 PorscheCustomer sshd[7055]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.33.35.82
Jun 27 12:02:12 PorscheCustomer sshd[7055]: Failed password for invalid user steam from 58.33.35.82 port 2568 ssh2
Jun 27 12:05:20 PorscheCustomer sshd[7172]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.33.35.82
...
2020-06-27 18:20:47
122.117.112.102 attack
SmallBizIT.US 1 packets to tcp(23)
2020-06-27 18:05:28
36.90.172.232 attack
Was blocked via (TELNET)
2020-06-27 18:40:19
50.7.177.43 attack
Jun 27 02:21:47 Tower sshd[27697]: Connection from 50.7.177.43 port 54888 on 192.168.10.220 port 22 rdomain ""
Jun 27 02:22:06 Tower sshd[27697]: Invalid user ubuntu from 50.7.177.43 port 54888
Jun 27 02:22:06 Tower sshd[27697]: error: Could not get shadow information for NOUSER
Jun 27 02:22:06 Tower sshd[27697]: Failed password for invalid user ubuntu from 50.7.177.43 port 54888 ssh2
Jun 27 02:22:07 Tower sshd[27697]: Received disconnect from 50.7.177.43 port 54888:11: Bye Bye [preauth]
Jun 27 02:22:07 Tower sshd[27697]: Disconnected from invalid user ubuntu 50.7.177.43 port 54888 [preauth]
2020-06-27 18:01:52
59.126.178.70 attackbotsspam
firewall-block, port(s): 81/tcp
2020-06-27 18:17:27
94.102.51.95 attack
06/27/2020-06:12:35.503673 94.102.51.95 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-06-27 18:38:56
165.227.86.199 attackbotsspam
Jun 27 11:38:41 vmd26974 sshd[12997]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.86.199
Jun 27 11:38:42 vmd26974 sshd[12997]: Failed password for invalid user orauat from 165.227.86.199 port 48350 ssh2
...
2020-06-27 18:09:46
128.199.202.206 attackspambots
2020-06-27T12:14:40.837090afi-git.jinr.ru sshd[25290]: Failed password for invalid user guest from 128.199.202.206 port 54668 ssh2
2020-06-27T12:17:44.311985afi-git.jinr.ru sshd[26159]: Invalid user demouser from 128.199.202.206 port 44234
2020-06-27T12:17:44.315329afi-git.jinr.ru sshd[26159]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=adityarama-dc.com
2020-06-27T12:17:44.311985afi-git.jinr.ru sshd[26159]: Invalid user demouser from 128.199.202.206 port 44234
2020-06-27T12:17:46.287352afi-git.jinr.ru sshd[26159]: Failed password for invalid user demouser from 128.199.202.206 port 44234 ssh2
...
2020-06-27 18:28:02
14.232.208.9 attackbots
firewall-block, port(s): 445/tcp
2020-06-27 18:23:19
172.81.211.47 attack
Brute-force attempt banned
2020-06-27 18:25:10
36.35.75.62 attack
unauthorized connection attempt
2020-06-27 18:37:09
41.109.215.7 attackbots
Automatic report - XMLRPC Attack
2020-06-27 18:27:10

Recently Reported IPs

104.21.16.39 0.69.16.215 183.6.101.154 104.21.16.40
104.21.16.41 104.21.16.43 104.21.16.45 238.19.150.46
104.21.16.46 104.21.16.5 104.21.16.54 104.21.16.59
104.21.16.61 104.21.16.62 104.21.16.70 104.21.16.71
104.21.16.72 104.21.16.79 104.21.16.83 104.21.16.84