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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.56.28
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41922
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.56.28.			IN	A

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

;; Query time: 67 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:37:55 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 28.56.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 28.56.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
113.187.169.173 attackbots
1578891011 - 01/13/2020 05:50:11 Host: 113.187.169.173/113.187.169.173 Port: 445 TCP Blocked
2020-01-13 16:39:40
110.138.150.13 attack
Honeypot attack, port: 445, PTR: 13.subnet110-138-150.speedy.telkom.net.id.
2020-01-13 16:58:27
177.184.221.49 attackspam
Fail2Ban Ban Triggered
2020-01-13 16:56:47
104.244.73.31 attack
ZTE Router Exploit Scanner
2020-01-13 16:47:15
185.183.98.175 attack
Honeypot attack, port: 445, PTR: PTR record not found
2020-01-13 17:05:15
142.93.205.21 attackspam
2020-01-13T04:50:09Z - RDP login failed multiple times. (142.93.205.21)
2020-01-13 16:49:45
117.4.24.21 attackspam
Honeypot attack, port: 445, PTR: localhost.
2020-01-13 16:50:06
142.217.214.8 attackbots
unauthorized connection attempt
2020-01-13 16:57:11
203.83.166.226 attack
Attempt to attack host OS, exploiting network vulnerabilities, on 13-01-2020 04:50:09.
2020-01-13 16:48:07
13.235.221.184 attackspam
Jan 13 09:08:09 taivassalofi sshd[176857]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.235.221.184
Jan 13 09:08:11 taivassalofi sshd[176857]: Failed password for invalid user wj from 13.235.221.184 port 52222 ssh2
...
2020-01-13 17:13:23
64.202.185.111 attack
C1,DEF GET /wp-login.php
2020-01-13 17:04:29
103.27.238.202 attackbotsspam
Jan 13 05:03:10 firewall sshd[27843]: Failed password for invalid user brett from 103.27.238.202 port 54512 ssh2
Jan 13 05:05:51 firewall sshd[27884]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.27.238.202  user=root
Jan 13 05:05:53 firewall sshd[27884]: Failed password for root from 103.27.238.202 port 41516 ssh2
...
2020-01-13 17:04:10
150.136.233.51 attackspam
RDP Bruteforce
2020-01-13 16:38:23
82.159.138.57 attackspam
2020-01-13T08:42:46.778720shield sshd\[12050\]: Invalid user surya from 82.159.138.57 port 63789
2020-01-13T08:42:46.783571shield sshd\[12050\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.159.138.57.static.user.ono.com
2020-01-13T08:42:48.687631shield sshd\[12050\]: Failed password for invalid user surya from 82.159.138.57 port 63789 ssh2
2020-01-13T08:45:05.312829shield sshd\[13426\]: Invalid user mcguitaruser from 82.159.138.57 port 17740
2020-01-13T08:45:05.316589shield sshd\[13426\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.159.138.57.static.user.ono.com
2020-01-13 17:00:44
51.91.126.140 attackbotsspam
Unauthorized connection attempt detected from IP address 51.91.126.140 to port 2220 [J]
2020-01-13 17:01:12

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