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 <<>> 104.21.51.99
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12254
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.51.99.			IN	A

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

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:35:33 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 99.51.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 99.51.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
92.255.248.230 attackbots
proto=tcp  .  spt=55307  .  dpt=25  .     (listed on Blocklist de  Jul 27)     (131)
2019-07-28 11:10:40
45.81.0.99 attackbots
(From micgyhaellox@gmail.com) Here is  an great  jackpot in repayment in ill will of winning. priestleychiro.com 
http://bit.ly/2NLqyag
2019-07-28 10:39:42
212.7.222.249 attack
2019-07-28T03:14:48.627648stark.klein-stark.info postfix/smtpd\[21527\]: NOQUEUE: reject: RCPT from sense.mygrumpyfund.com\[212.7.222.249\]: 554 5.7.1 \: Relay access denied\; from=\ to=\ proto=ESMTP helo=\
...
2019-07-28 10:46:47
94.231.136.154 attack
Jul 28 03:08:42 debian sshd\[13772\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.231.136.154  user=root
Jul 28 03:08:44 debian sshd\[13772\]: Failed password for root from 94.231.136.154 port 49334 ssh2
...
2019-07-28 10:34:03
122.195.200.14 attackbots
SSH Brute Force, server-1 sshd[6965]: Failed password for root from 122.195.200.14 port 30860 ssh2
2019-07-28 11:03:35
185.222.202.65 attackspam
Jul 28 01:14:44 thevastnessof sshd[10124]: Failed password for root from 185.222.202.65 port 60182 ssh2
...
2019-07-28 10:49:10
221.146.233.140 attackspam
Jul 28 04:37:29 v22018053744266470 sshd[2210]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.146.233.140
Jul 28 04:37:30 v22018053744266470 sshd[2210]: Failed password for invalid user LyCpcx!))^)10010 from 221.146.233.140 port 35663 ssh2
Jul 28 04:42:56 v22018053744266470 sshd[2615]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.146.233.140
...
2019-07-28 10:46:08
178.32.10.94 attackspambots
2019-07-28T02:33:17.108027abusebot-6.cloudsearch.cf sshd\[31740\]: Invalid user admin from 178.32.10.94 port 34477
2019-07-28 11:04:27
195.191.131.150 attack
proto=tcp  .  spt=50337  .  dpt=25  .     (listed on Blocklist de  Jul 27)     (146)
2019-07-28 10:45:17
125.161.139.86 attackspambots
SSH bruteforce (Triggered fail2ban)
2019-07-28 10:47:12
45.4.66.69 attackbots
Automatic report - Port Scan Attack
2019-07-28 10:43:29
189.90.244.82 attackspam
proto=tcp  .  spt=43553  .  dpt=25  .     (listed on Blocklist de  Jul 27)     (126)
2019-07-28 11:20:24
108.36.94.38 attack
Jul 27 22:10:47 plusreed sshd[18722]: Invalid user powerpuff from 108.36.94.38
...
2019-07-28 10:35:32
60.224.67.247 attack
Jul 28 03:14:48 host sshd\[5325\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.224.67.247  user=root
Jul 28 03:14:50 host sshd\[5325\]: Failed password for root from 60.224.67.247 port 43100 ssh2
...
2019-07-28 10:47:39
82.209.236.138 attackspam
Jul 28 02:54:35 nextcloud sshd\[14060\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.209.236.138  user=root
Jul 28 02:54:37 nextcloud sshd\[14060\]: Failed password for root from 82.209.236.138 port 49630 ssh2
Jul 28 03:14:45 nextcloud sshd\[25795\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.209.236.138  user=root
...
2019-07-28 10:48:52

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