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 <<>> 104.21.73.223
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 64630
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.73.223.			IN	A

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

;; Query time: 55 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:52:10 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 223.73.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 223.73.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
114.43.25.176 attack
Unauthorized connection attempt detected from IP address 114.43.25.176 to port 445
2020-01-03 19:22:51
222.186.190.2 attackbots
2020-01-03T12:16:03.130815centos sshd\[24836\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.2  user=root
2020-01-03T12:16:05.464978centos sshd\[24836\]: Failed password for root from 222.186.190.2 port 35580 ssh2
2020-01-03T12:16:08.814661centos sshd\[24836\]: Failed password for root from 222.186.190.2 port 35580 ssh2
2020-01-03 19:21:38
14.245.2.184 attackspam
Unauthorized connection attempt from IP address 14.245.2.184 on Port 445(SMB)
2020-01-03 19:08:53
36.81.6.227 attackbotsspam
Unauthorized connection attempt from IP address 36.81.6.227 on Port 445(SMB)
2020-01-03 19:34:58
128.199.154.60 attack
Jan  3 08:11:47 mail sshd[16084]: Invalid user saf from 128.199.154.60
Jan  3 08:11:47 mail sshd[16084]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.154.60
Jan  3 08:11:47 mail sshd[16084]: Invalid user saf from 128.199.154.60
Jan  3 08:11:48 mail sshd[16084]: Failed password for invalid user saf from 128.199.154.60 port 51038 ssh2
...
2020-01-03 19:18:33
88.255.84.68 attackbots
Unauthorized connection attempt from IP address 88.255.84.68 on Port 445(SMB)
2020-01-03 19:02:14
149.56.123.177 attack
149.56.123.177 - - [03/Jan/2020:07:16:12 +0100] "POST /wp-login.php HTTP/1.1" 200 3871 "http://idea.univ-lyon3.fr/wp-login.php" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36"
149.56.123.177 - - [03/Jan/2020:07:16:13 +0100] "POST /wp-login.php HTTP/1.1" 200 3871 "http://idea.univ-lyon3.fr/wp-login.php" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36"
149.56.123.177 - - [03/Jan/2020:07:16:13 +0100] "POST /wp-login.php HTTP/1.1" 200 3871 "http://idea.univ-lyon3.fr/wp-login.php" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36"
149.56.123.177 - - [03/Jan/2020:07:16:13 +0100] "POST /wp-login.php HTTP/1.1" 200 3871 "http://idea.univ-lyon3.fr/wp-login.php" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36"
149.56.123.177 - - [03/Jan/2020:07:16:14
2020-01-03 19:12:04
80.252.137.27 attackbots
Jan  3 14:29:31 gw1 sshd[353]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.252.137.27
Jan  3 14:29:33 gw1 sshd[353]: Failed password for invalid user buz from 80.252.137.27 port 42822 ssh2
...
2020-01-03 19:04:07
106.13.53.161 attack
Invalid user sueling from 106.13.53.161 port 36348
2020-01-03 19:23:57
60.247.36.122 attackspam
Jan  3 06:21:02 haigwepa sshd[19571]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.247.36.122 
Jan  3 06:21:04 haigwepa sshd[19571]: Failed password for invalid user temp from 60.247.36.122 port 43820 ssh2
...
2020-01-03 19:08:32
118.89.240.188 attackspam
Jan  3 07:19:33 [host] sshd[19730]: Invalid user ispconfig from 118.89.240.188
Jan  3 07:19:33 [host] sshd[19730]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.89.240.188
Jan  3 07:19:35 [host] sshd[19730]: Failed password for invalid user ispconfig from 118.89.240.188 port 39928 ssh2
2020-01-03 19:19:25
58.59.25.2 attackbots
Unauthorized connection attempt from IP address 58.59.25.2 on Port 445(SMB)
2020-01-03 19:13:31
154.73.104.100 attackspambots
Unauthorized connection attempt from IP address 154.73.104.100 on Port 445(SMB)
2020-01-03 19:18:07
120.29.225.101 attackspam
Unauthorized connection attempt from IP address 120.29.225.101 on Port 445(SMB)
2020-01-03 19:02:57
36.32.236.8 attack
Unauthorized connection attempt from IP address 36.32.236.8 on Port 445(SMB)
2020-01-03 19:13:57

Recently Reported IPs

104.21.73.226 104.21.73.225 104.21.73.227 104.21.73.229
104.21.73.232 104.21.73.234 104.21.73.233 104.21.73.231
104.21.73.235 104.21.73.228 104.21.73.237 104.21.73.239
104.21.73.24 104.21.73.238 104.21.73.241 104.21.73.242
104.21.73.246 104.21.73.247 104.21.73.243 104.21.73.244