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 <<>> 104.21.66.163
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40526
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.66.163.			IN	A

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

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:44:51 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 163.66.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 163.66.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
221.157.41.135 attackspambots
Telnet/23 MH Probe, BF, Hack -
2019-08-26 06:40:39
134.175.36.138 attackspam
Invalid user ahmadi from 134.175.36.138 port 59764
2019-08-26 06:28:38
92.222.181.159 attack
Aug 26 00:08:39 SilenceServices sshd[2419]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.181.159
Aug 26 00:08:40 SilenceServices sshd[2419]: Failed password for invalid user hellen from 92.222.181.159 port 51794 ssh2
Aug 26 00:12:46 SilenceServices sshd[4013]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.181.159
2019-08-26 06:22:11
186.179.100.17 attackspam
Aug 25 13:48:30 mailman dovecot: imap-login: Disconnected (auth failed, 1 attempts): user=, method=PLAIN, rip=186.179.100.17, lip=[munged], TLS
2019-08-26 06:19:32
37.49.229.160 attackspambots
Automatic report - Port Scan Attack
2019-08-26 06:36:44
39.74.33.65 attackbots
[Aegis] @ 2019-08-25 19:48:33  0100 -> Maximum authentication attempts exceeded.
2019-08-26 06:19:51
51.38.239.50 attackbots
Aug 25 22:31:07 mail sshd[6700]: Invalid user video from 51.38.239.50
...
2019-08-26 05:56:13
40.68.160.253 attack
Aug 25 11:49:58 lcprod sshd\[29890\]: Invalid user siteadmin from 40.68.160.253
Aug 25 11:49:58 lcprod sshd\[29890\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.68.160.253
Aug 25 11:50:00 lcprod sshd\[29890\]: Failed password for invalid user siteadmin from 40.68.160.253 port 59022 ssh2
Aug 25 11:55:04 lcprod sshd\[30332\]: Invalid user ubuntu from 40.68.160.253
Aug 25 11:55:04 lcprod sshd\[30332\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.68.160.253
2019-08-26 06:00:18
58.57.200.18 attack
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-08-25 17:28:34,462 INFO [amun_request_handler] PortScan Detected on Port: 445 (58.57.200.18)
2019-08-26 05:55:28
88.149.160.128 attack
Fail2Ban - SSH Bruteforce Attempt
2019-08-26 06:12:40
104.2.197.99 attack
Automatic report - SSH Brute-Force Attack
2019-08-26 06:29:09
51.38.99.73 attackbotsspam
Invalid user mongod from 51.38.99.73 port 45978
2019-08-26 06:16:52
114.118.91.64 attackspam
Aug 25 12:32:10 lcdev sshd\[8027\]: Invalid user support from 114.118.91.64
Aug 25 12:32:10 lcdev sshd\[8027\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.118.91.64
Aug 25 12:32:13 lcdev sshd\[8027\]: Failed password for invalid user support from 114.118.91.64 port 57780 ssh2
Aug 25 12:36:47 lcdev sshd\[8391\]: Invalid user segreteria from 114.118.91.64
Aug 25 12:36:47 lcdev sshd\[8391\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.118.91.64
2019-08-26 06:38:52
113.160.155.106 attackbots
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-08-25 17:27:54,213 INFO [amun_request_handler] PortScan Detected on Port: 445 (113.160.155.106)
2019-08-26 06:03:08
222.186.42.163 attackbots
08/25/2019-18:25:27.352890 222.186.42.163 Protocol: 6 ET SCAN Potential SSH Scan
2019-08-26 06:27:53

Recently Reported IPs

104.21.66.156 104.21.66.165 104.21.66.171 104.21.66.168
104.21.66.172 104.21.66.176 104.21.66.175 104.21.66.178
104.21.70.44 104.21.66.177 104.21.66.182 104.21.66.190
104.21.66.185 104.21.66.188 104.21.66.191 104.21.70.47
104.21.66.207 104.21.66.211 104.21.66.216 104.21.66.224