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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.16.156
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61026
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.156.			IN	A

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

;; Query time: 19 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:31:25 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 156.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 156.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
203.177.60.238 attackbotsspam
20/2/11@08:39:48: FAIL: Alarm-Network address from=203.177.60.238
...
2020-02-12 05:33:45
89.242.13.36 attackbotsspam
Port probing on unauthorized port 5555
2020-02-12 05:34:39
95.110.154.101 attack
Feb 11 23:02:58 lukav-desktop sshd\[21893\]: Invalid user kg from 95.110.154.101
Feb 11 23:02:58 lukav-desktop sshd\[21893\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.110.154.101
Feb 11 23:03:00 lukav-desktop sshd\[21893\]: Failed password for invalid user kg from 95.110.154.101 port 57168 ssh2
Feb 11 23:05:16 lukav-desktop sshd\[31132\]: Invalid user fw from 95.110.154.101
Feb 11 23:05:16 lukav-desktop sshd\[31132\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.110.154.101
2020-02-12 06:00:36
37.187.54.45 attack
(sshd) Failed SSH login from 37.187.54.45 (FR/France/-/-/45.ip-37-187-54.eu/[AS16276 OVH SAS]): 1 in the last 3600 secs
2020-02-12 05:54:05
39.108.123.4 attackspambots
Automatic report - XMLRPC Attack
2020-02-12 06:03:15
164.77.141.93 attackbotsspam
Unauthorized connection attempt from IP address 164.77.141.93 on Port 445(SMB)
2020-02-12 05:22:25
137.74.119.120 attack
Feb 11 20:52:10 nextcloud sshd\[21777\]: Invalid user frosty from 137.74.119.120
Feb 11 20:52:10 nextcloud sshd\[21777\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=137.74.119.120
Feb 11 20:52:12 nextcloud sshd\[21777\]: Failed password for invalid user frosty from 137.74.119.120 port 45756 ssh2
2020-02-12 05:35:16
92.118.161.41 attackbotsspam
Feb 11 20:28:11 debian-2gb-nbg1-2 kernel: \[3708523.174003\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=92.118.161.41 DST=195.201.40.59 LEN=44 TOS=0x00 PREC=0x00 TTL=239 ID=54321 PROTO=TCP SPT=63546 DPT=111 WINDOW=65535 RES=0x00 SYN URGP=0
2020-02-12 05:33:06
106.12.222.209 attackspam
Feb 11 15:00:40 ingram sshd[30413]: Invalid user dew from 106.12.222.209
Feb 11 15:00:40 ingram sshd[30413]: Failed password for invalid user dew from 106.12.222.209 port 50378 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=106.12.222.209
2020-02-12 05:38:05
58.87.74.123 attack
SSH invalid-user multiple login attempts
2020-02-12 05:38:53
185.45.165.234 attack
5555/tcp 5555/tcp 34567/tcp
[2019-12-12/2020-02-11]3pkt
2020-02-12 05:30:43
65.49.20.93 attackbots
443/udp 22/tcp 443/udp
[2019-12-14/2020-02-11]3pkt
2020-02-12 05:36:09
58.216.149.158 attackspambots
Unauthorized access or intrusion attempt detected from Thor banned IP
2020-02-12 05:23:20
189.59.84.155 attack
Port probing on unauthorized port 445
2020-02-12 05:57:04
202.28.123.90 attack
20/2/11@08:39:54: FAIL: Alarm-Network address from=202.28.123.90
20/2/11@08:39:54: FAIL: Alarm-Network address from=202.28.123.90
...
2020-02-12 05:27:23

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