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 <<>> 104.21.55.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 59534
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.55.4.			IN	A

;; AUTHORITY SECTION:
.			262	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022001 1800 900 604800 86400

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 21 05:24:25 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 4.55.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 4.55.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
78.187.7.15 attackbotsspam
 TCP (SYN) 78.187.7.15:64720 -> port 445, len 52
2020-08-29 15:16:32
122.54.195.238 attackspambots
Port scan detected on ports: 8291[TCP], 8291[TCP], 8291[TCP]
2020-08-29 15:30:20
14.233.68.125 attackspambots
20/8/28@23:56:36: FAIL: Alarm-Network address from=14.233.68.125
20/8/28@23:56:36: FAIL: Alarm-Network address from=14.233.68.125
...
2020-08-29 15:01:21
218.92.0.133 attackbotsspam
Aug 29 08:15:35 rocket sshd[25998]: Failed password for root from 218.92.0.133 port 16592 ssh2
Aug 29 08:15:38 rocket sshd[25998]: Failed password for root from 218.92.0.133 port 16592 ssh2
Aug 29 08:15:41 rocket sshd[25998]: Failed password for root from 218.92.0.133 port 16592 ssh2
...
2020-08-29 15:17:03
51.15.241.102 attackspambots
Aug 29 09:26:16 root sshd[26180]: Invalid user hpb from 51.15.241.102
...
2020-08-29 15:03:17
54.38.156.63 attack
Aug 29 08:16:28 pve1 sshd[12647]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.38.156.63 
Aug 29 08:16:30 pve1 sshd[12647]: Failed password for invalid user ronald from 54.38.156.63 port 40504 ssh2
...
2020-08-29 15:00:44
189.39.112.219 attack
2020-08-29T00:45:10.950068dreamphreak.com sshd[159741]: Invalid user nagios from 189.39.112.219 port 58194
2020-08-29T00:45:12.921446dreamphreak.com sshd[159741]: Failed password for invalid user nagios from 189.39.112.219 port 58194 ssh2
...
2020-08-29 14:54:14
110.171.219.248 attackbots
Port probing on unauthorized port 23
2020-08-29 14:53:35
191.136.241.230 attackbotsspam
Unauthorized connection attempt from IP address 191.136.241.230 on Port 445(SMB)
2020-08-29 15:31:35
212.70.149.4 attackspambots
Aug 29 09:05:56 srv01 postfix/smtpd\[19764\]: warning: unknown\[212.70.149.4\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 29 09:06:13 srv01 postfix/smtpd\[20779\]: warning: unknown\[212.70.149.4\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 29 09:08:54 srv01 postfix/smtpd\[11629\]: warning: unknown\[212.70.149.4\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 29 09:09:12 srv01 postfix/smtpd\[21414\]: warning: unknown\[212.70.149.4\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 29 09:09:17 srv01 postfix/smtpd\[21692\]: warning: unknown\[212.70.149.4\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-08-29 15:12:25
192.35.168.154 attack
587/tcp 8089/tcp 161/udp...
[2020-07-06/08-29]12pkt,9pt.(tcp),1pt.(udp)
2020-08-29 15:12:40
51.75.16.206 attackspam
Automatic report - XMLRPC Attack
2020-08-29 15:30:42
159.65.111.89 attack
Invalid user wsp from 159.65.111.89 port 49262
2020-08-29 15:04:16
200.48.237.52 attackbotsspam
Unauthorized connection attempt from IP address 200.48.237.52 on Port 445(SMB)
2020-08-29 15:35:26
192.241.227.55 attackbotsspam
Unauthorized connection attempt from IP address 192.241.227.55 on Port 3389(RDP)
2020-08-29 15:25:37

Recently Reported IPs

104.21.55.39 104.21.55.125 104.21.55.229 104.21.55.203
104.21.55.43 104.21.55.46 104.21.55.145 104.21.55.57
104.21.55.87 104.21.55.7 104.21.55.94 104.21.56.101
104.21.56.119 104.21.56.120 104.21.56.125 104.21.56.126
104.21.56.13 104.21.56.140 104.21.56.133 104.21.56.134