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:
IP Type Details Datetime
104.21.75.2 spam
Spammer blacklist in https://www.projecthoneypot.org/ip_104.21.75.2 https://multirbl.valli.org/lookup/104.21.75.2.html
2022-12-29 00:00:44
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.7.204
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 25799
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.7.204.			IN	A

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

;; Query time: 18 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:34:53 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 204.7.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 204.7.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
165.22.218.11 attack
22/tcp 22/tcp 22/tcp...
[2019-09-15/19]6pkt,1pt.(tcp)
2019-09-20 23:28:21
67.214.100.75 attack
Port Scan: TCP/445
2019-09-20 22:50:58
103.90.224.155 attack
Forged login request.
2019-09-20 23:29:00
132.148.18.178 attackbotsspam
WordPress wp-login brute force :: 132.148.18.178 0.052 BYPASS [21/Sep/2019:01:26:28  1000] [censored_4] "POST /wp-login.php HTTP/1.1" 200 3989 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2019-09-20 23:30:13
126.68.255.87 attack
Port Scan: TCP/1588
2019-09-20 22:41:03
91.135.213.120 attackspam
2019-09-20 11:00:44 H=(mail.igvx.ru) [91.135.213.120] F=: Unrouteable address


........
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https://www.blocklist.de/en/view.html?ip=91.135.213.120
2019-09-20 23:11:33
88.99.143.25 attackbotsspam
Sep 20 13:11:50 [host] sshd[22742]: Invalid user webmaster from 88.99.143.25
Sep 20 13:11:50 [host] sshd[22742]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=88.99.143.25
Sep 20 13:11:52 [host] sshd[22742]: Failed password for invalid user webmaster from 88.99.143.25 port 44818 ssh2
2019-09-20 23:31:20
106.110.164.245 attack
[Aegis] @ 2019-09-20 10:14:37  0100 -> Sendmail rejected message.
2019-09-20 23:23:03
87.225.9.251 attackbotsspam
Tried to hack my Synology NAS.

Warning	Verbindung	2019/09/20 16:54:53	admin	User [admin] from [87.225.9.251] failed to log in via [DSM] due to authorization failure.
Warning	Verbindung	2019/09/20 16:54:47	admin	User [admin] from [87.225.9.251] failed to log in via [DSM] due to authorization failure.
Warning	Verbindung	2019/09/20 16:54:42	admin	User [admin] from [87.225.9.251] failed to log in via [DSM] due to authorization failure.
2019-09-20 23:27:26
166.70.16.87 attack
Port Scan: UDP/137
2019-09-20 23:03:45
222.186.52.78 attackbots
scan r
2019-09-20 23:21:24
182.61.130.121 attackbots
Sep 20 15:06:23 hcbbdb sshd\[9616\]: Invalid user ftpuser from 182.61.130.121
Sep 20 15:06:23 hcbbdb sshd\[9616\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.130.121
Sep 20 15:06:25 hcbbdb sshd\[9616\]: Failed password for invalid user ftpuser from 182.61.130.121 port 32867 ssh2
Sep 20 15:11:59 hcbbdb sshd\[10198\]: Invalid user oracle from 182.61.130.121
Sep 20 15:11:59 hcbbdb sshd\[10198\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.130.121
2019-09-20 23:18:08
110.80.17.26 attackbots
Sep 20 16:10:10 yesfletchmain sshd\[20290\]: Invalid user seed from 110.80.17.26 port 55662
Sep 20 16:10:10 yesfletchmain sshd\[20290\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.80.17.26
Sep 20 16:10:13 yesfletchmain sshd\[20290\]: Failed password for invalid user seed from 110.80.17.26 port 55662 ssh2
Sep 20 16:12:34 yesfletchmain sshd\[20360\]: Invalid user hadoop from 110.80.17.26 port 54688
Sep 20 16:12:34 yesfletchmain sshd\[20360\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.80.17.26
...
2019-09-20 23:15:13
190.17.117.73 attack
Port Scan: TCP/34567
2019-09-20 23:00:46
73.130.128.39 attack
Port Scan: TCP/25
2019-09-20 22:47:47

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