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 <<>> 104.16.21.12
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61074
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.16.21.12.			IN	A

;; AUTHORITY SECTION:
.			172	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022031801 1800 900 604800 86400

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Mar 19 09:18:58 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 12.21.16.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 12.21.16.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
185.220.101.44 attackspambots
IP attempted unauthorised action
2019-07-09 01:27:41
198.108.67.48 attack
HTTP/80/443 Probe, BF, WP, Hack -
2019-07-09 02:03:59
61.5.156.249 attackbots
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-08 07:34:06,735 INFO [amun_request_handler] PortScan Detected on Port: 445 (61.5.156.249)
2019-07-09 01:22:09
185.220.101.25 attackspambots
Jul  8 15:11:24 vpn01 sshd\[9625\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.101.25  user=root
Jul  8 15:11:26 vpn01 sshd\[9625\]: Failed password for root from 185.220.101.25 port 33421 ssh2
Jul  8 15:11:33 vpn01 sshd\[9625\]: Failed password for root from 185.220.101.25 port 33421 ssh2
2019-07-09 01:40:26
51.68.122.216 attack
Brute force SMTP login attempted.
...
2019-07-09 01:15:05
51.38.238.87 attackbots
Brute force SMTP login attempted.
...
2019-07-09 01:05:48
95.128.144.1 attackspambots
Unauthorized IMAP connection attempt.
2019-07-09 01:38:01
185.220.101.69 attack
Jul  8 15:05:31 vpn01 sshd\[9468\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.101.69  user=root
Jul  8 15:05:33 vpn01 sshd\[9468\]: Failed password for root from 185.220.101.69 port 39640 ssh2
Jul  8 15:05:43 vpn01 sshd\[9468\]: Failed password for root from 185.220.101.69 port 39640 ssh2
2019-07-09 01:17:38
159.65.146.250 attackspambots
Brute force SMTP login attempted.
...
2019-07-09 01:21:30
14.228.206.50 attackbotsspam
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-07 22:23:01,651 INFO [shellcode_manager] (14.228.206.50) no match, writing hexdump (850f22dbd7a59d38a6ddb518e7e48d11 :2160855) - MS17010 (EternalBlue)
2019-07-09 01:46:37
202.108.1.120 attackspambots
HTTP/80/443 Probe, BF, WP, Hack -
2019-07-09 01:54:46
36.84.189.143 attackbots
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-08 07:32:11,290 INFO [amun_request_handler] PortScan Detected on Port: 445 (36.84.189.143)
2019-07-09 01:54:06
223.80.97.23 attackspambots
HTTP/80/443 Probe, BF, WP, Hack -
2019-07-09 01:13:07
213.100.249.127 attack
HTTP/80/443 Probe, BF, WP, Hack -
2019-07-09 01:27:21
197.48.5.184 attack
port scan and connect, tcp 23 (telnet)
2019-07-09 01:48:11

Recently Reported IPs

104.16.21.11 104.16.21.13 104.16.21.14 104.16.21.15
104.16.21.16 104.16.21.17 104.16.21.2 104.16.21.20
104.16.21.21 104.16.21.22 104.16.21.23 104.16.21.24
104.16.21.3 104.16.21.4 104.16.21.5 104.16.21.6
104.16.21.7 104.16.21.8 104.16.21.9 104.16.212.34