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 <<>> 104.21.40.54
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 23198
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.40.54.			IN	A

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

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:09:35 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 54.40.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 54.40.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
221.157.214.239 attackbotsspam
Aug 21 18:24:57 rpi sshd[386]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.157.214.239 
Aug 21 18:24:59 rpi sshd[386]: Failed password for invalid user 587 from 221.157.214.239 port 52758 ssh2
2019-08-22 00:58:34
159.65.175.37 attackspam
$f2bV_matches
2019-08-22 00:02:08
60.245.60.151 attackspam
WordPress wp-login brute force :: 60.245.60.151 0.052 BYPASS [22/Aug/2019:01:21:53  1000] [censored_2] "POST /wp-login.php HTTP/1.1" 200 4630 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2019-08-22 00:22:14
189.91.7.23 attackbotsspam
$f2bV_matches
2019-08-22 00:34:27
77.35.31.225 attack
21,91-01/01 concatform PostRequest-Spammer scoring: lisboa
2019-08-22 00:56:26
223.27.234.253 attackspam
" "
2019-08-22 00:27:09
52.187.37.188 attackspambots
Aug 21 16:13:19 localhost sshd\[76709\]: Invalid user alice from 52.187.37.188 port 51202
Aug 21 16:13:19 localhost sshd\[76709\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.187.37.188
Aug 21 16:13:21 localhost sshd\[76709\]: Failed password for invalid user alice from 52.187.37.188 port 51202 ssh2
Aug 21 16:22:00 localhost sshd\[77088\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.187.37.188  user=root
Aug 21 16:22:02 localhost sshd\[77088\]: Failed password for root from 52.187.37.188 port 44574 ssh2
...
2019-08-22 00:31:37
51.68.192.106 attack
Aug 21 06:01:32 tdfoods sshd\[16415\]: Invalid user temp from 51.68.192.106
Aug 21 06:01:32 tdfoods sshd\[16415\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip106.ip-51-68-192.eu
Aug 21 06:01:34 tdfoods sshd\[16415\]: Failed password for invalid user temp from 51.68.192.106 port 57730 ssh2
Aug 21 06:05:38 tdfoods sshd\[16743\]: Invalid user samhain from 51.68.192.106
Aug 21 06:05:38 tdfoods sshd\[16743\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip106.ip-51-68-192.eu
2019-08-22 00:16:51
119.18.154.82 attackbotsspam
Aug 21 17:01:13 mail sshd\[12139\]: Invalid user marjorie from 119.18.154.82 port 46084
Aug 21 17:01:13 mail sshd\[12139\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.18.154.82
...
2019-08-22 00:05:54
50.117.96.61 attack
Aug 21 16:41:13 DAAP sshd[8225]: Invalid user gwool from 50.117.96.61 port 44584
...
2019-08-22 01:20:22
109.70.100.24 attackbotsspam
Automatic report - Banned IP Access
2019-08-22 00:21:30
79.18.57.223 attack
php WP PHPmyadamin ABUSE blocked for 12h
2019-08-22 00:20:11
149.202.56.194 attackbots
frenzy
2019-08-22 00:17:23
177.190.176.8 attackspambots
firewall-block, port(s): 8080/tcp
2019-08-22 00:41:17
51.211.171.125 attack
RDP Bruteforce
2019-08-22 00:02:48

Recently Reported IPs

104.21.40.50 104.21.40.61 104.21.40.59 104.21.40.68
104.21.40.67 13.225.71.122 104.21.40.71 104.21.40.75
104.21.40.79 104.21.40.78 13.225.71.123 104.21.40.82
104.21.40.84 104.21.40.80 104.21.40.91 104.21.40.93
104.21.41.11 104.21.40.96 104.21.40.97 104.21.41.101