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: Republic of China (ROC)

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 <<>> 163.21.242.213
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 13163
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;163.21.242.213.			IN	A

;; AUTHORITY SECTION:
.			291	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019103001 1800 900 604800 86400

;; Query time: 110 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Oct 31 11:58:26 CST 2019
;; MSG SIZE  rcvd: 118
Host info
Host 213.242.21.163.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 213.242.21.163.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
110.83.51.25 attackbotsspam
Unauthorized connection attempt detected from IP address 110.83.51.25 to port 222 [T]
2020-04-08 16:28:49
54.37.154.113 attack
(sshd) Failed SSH login from 54.37.154.113 (FR/France/113.ip-54-37-154.eu): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Apr  8 08:58:59 ubnt-55d23 sshd[8788]: Invalid user clamav from 54.37.154.113 port 51466
Apr  8 08:59:01 ubnt-55d23 sshd[8788]: Failed password for invalid user clamav from 54.37.154.113 port 51466 ssh2
2020-04-08 15:47:41
104.248.31.117 attackspam
$f2bV_matches
2020-04-08 16:00:56
103.218.2.144 attackspambots
Apr  8 06:01:38 xeon sshd[49986]: Failed password for invalid user teampspeak3 from 103.218.2.144 port 45426 ssh2
2020-04-08 15:51:09
217.128.84.134 attack
Apr  8 01:11:48 ws22vmsma01 sshd[65252]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.128.84.134
Apr  8 01:11:50 ws22vmsma01 sshd[65252]: Failed password for invalid user henry from 217.128.84.134 port 60684 ssh2
...
2020-04-08 16:15:12
121.46.26.126 attackspambots
Apr  8 08:11:28 h2829583 sshd[20166]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.46.26.126
2020-04-08 16:07:12
49.51.163.95 attack
Brute force SMTP login attempted.
...
2020-04-08 15:54:50
206.81.7.46 attackspam
[2020-04-08 03:54:22] NOTICE[12114][C-00002c2c] chan_sip.c: Call from '' (206.81.7.46:54191) to extension '330046520458221' rejected because extension not found in context 'public'.
[2020-04-08 03:54:22] SECURITY[12128] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-04-08T03:54:22.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="330046520458221",SessionID="0x7f020c0db748",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/206.81.7.46/54191",ACLName="no_extension_match"
[2020-04-08 03:59:32] NOTICE[12114][C-00002c2f] chan_sip.c: Call from '' (206.81.7.46:61111) to extension '340046520458221' rejected because extension not found in context 'public'.
[2020-04-08 03:59:32] SECURITY[12128] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-04-08T03:59:32.107-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="340046520458221",SessionID="0x7f020c088288",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/20
...
2020-04-08 16:12:30
165.22.186.178 attackspambots
Apr  8 05:56:03 sso sshd[9680]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.186.178
Apr  8 05:56:06 sso sshd[9680]: Failed password for invalid user admin from 165.22.186.178 port 43724 ssh2
...
2020-04-08 16:13:38
177.87.158.98 attack
Apr  8 08:03:52 ns382633 sshd\[19166\]: Invalid user lisa from 177.87.158.98 port 55304
Apr  8 08:03:52 ns382633 sshd\[19166\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.87.158.98
Apr  8 08:03:54 ns382633 sshd\[19166\]: Failed password for invalid user lisa from 177.87.158.98 port 55304 ssh2
Apr  8 08:17:58 ns382633 sshd\[22084\]: Invalid user deploy from 177.87.158.98 port 51298
Apr  8 08:17:58 ns382633 sshd\[22084\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.87.158.98
2020-04-08 16:11:26
221.133.18.119 attack
Apr  8 08:46:33 rotator sshd\[8509\]: Invalid user temp from 221.133.18.119Apr  8 08:46:35 rotator sshd\[8509\]: Failed password for invalid user temp from 221.133.18.119 port 34054 ssh2Apr  8 08:49:14 rotator sshd\[8533\]: Failed password for postgres from 221.133.18.119 port 46191 ssh2Apr  8 08:50:05 rotator sshd\[8539\]: Failed password for root from 221.133.18.119 port 50458 ssh2Apr  8 08:51:03 rotator sshd\[9287\]: Invalid user deploy from 221.133.18.119Apr  8 08:51:05 rotator sshd\[9287\]: Failed password for invalid user deploy from 221.133.18.119 port 54726 ssh2
...
2020-04-08 15:55:50
39.122.30.221 attack
FTP brute-force attack
2020-04-08 15:55:13
114.113.126.163 attackspambots
Apr  8 07:36:38 pkdns2 sshd\[5354\]: Invalid user andy from 114.113.126.163Apr  8 07:36:40 pkdns2 sshd\[5354\]: Failed password for invalid user andy from 114.113.126.163 port 50875 ssh2Apr  8 07:40:14 pkdns2 sshd\[5592\]: Invalid user sgeadmin from 114.113.126.163Apr  8 07:40:16 pkdns2 sshd\[5592\]: Failed password for invalid user sgeadmin from 114.113.126.163 port 47063 ssh2Apr  8 07:43:51 pkdns2 sshd\[5750\]: Invalid user ts3 from 114.113.126.163Apr  8 07:43:53 pkdns2 sshd\[5750\]: Failed password for invalid user ts3 from 114.113.126.163 port 43254 ssh2
...
2020-04-08 16:26:10
122.166.237.117 attackbotsspam
Brute-force attempt banned
2020-04-08 15:52:24
82.65.23.62 attackbots
Apr  8 07:40:32 host01 sshd[11729]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.65.23.62 
Apr  8 07:40:34 host01 sshd[11729]: Failed password for invalid user admin from 82.65.23.62 port 32822 ssh2
Apr  8 07:44:32 host01 sshd[12542]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.65.23.62 
...
2020-04-08 16:10:27

Recently Reported IPs

47.111.236.149 35.9.249.143 216.171.67.47 106.196.220.142
220.236.245.15 157.105.141.137 158.56.120.163 146.129.208.8
253.45.86.78 236.246.88.84 84.233.192.107 145.246.161.151
148.126.187.229 103.128.152.242 181.5.239.107 105.109.137.158
68.0.80.25 180.137.172.219 230.141.35.136 193.240.27.178