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: Taiwan, China

Internet Service Provider: unknown

Hostname: unknown

Organization: Taiwan Academic Network (TANet) Information Center

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 <<>> 163.21.254.166
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 64475
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019071300 1800 900 604800 86400

;; Query time: 3 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Sun Jul 14 01:02:43 CST 2019
;; MSG SIZE  rcvd: 118
Host info
Host 166.254.21.163.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

** server can't find 166.254.21.163.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
200.201.217.104 attack
2019-09-29T07:37:19.671556abusebot-3.cloudsearch.cf sshd\[16812\]: Invalid user molisoft from 200.201.217.104 port 60714
2019-09-29 15:55:28
68.183.65.165 attack
Sep 29 09:19:46 MK-Soft-VM5 sshd[22132]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.65.165 
Sep 29 09:19:48 MK-Soft-VM5 sshd[22132]: Failed password for invalid user london from 68.183.65.165 port 51424 ssh2
...
2019-09-29 16:04:24
45.55.222.162 attack
Sep 29 07:11:53 cp sshd[27858]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.55.222.162
2019-09-29 15:43:04
69.85.70.98 attack
Sep 28 21:47:18 lcdev sshd\[5539\]: Invalid user yu from 69.85.70.98
Sep 28 21:47:18 lcdev sshd\[5539\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.85.70.98
Sep 28 21:47:20 lcdev sshd\[5539\]: Failed password for invalid user yu from 69.85.70.98 port 59894 ssh2
Sep 28 21:51:35 lcdev sshd\[5923\]: Invalid user kronos from 69.85.70.98
Sep 28 21:51:35 lcdev sshd\[5923\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.85.70.98
2019-09-29 16:04:09
116.196.90.181 attackspam
2019-09-29T03:08:52.6345581495-001 sshd\[52530\]: Failed password for invalid user password from 116.196.90.181 port 58764 ssh2
2019-09-29T03:23:06.9244751495-001 sshd\[47998\]: Invalid user hypass from 116.196.90.181 port 34230
2019-09-29T03:23:06.9333681495-001 sshd\[47998\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.196.90.181
2019-09-29T03:23:08.8097791495-001 sshd\[47998\]: Failed password for invalid user hypass from 116.196.90.181 port 34230 ssh2
2019-09-29T03:28:49.8704161495-001 sshd\[48542\]: Invalid user 1234 from 116.196.90.181 port 38772
2019-09-29T03:28:49.8777671495-001 sshd\[48542\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.196.90.181
...
2019-09-29 15:45:07
159.65.189.115 attackbotsspam
Sep 29 07:41:06 hcbbdb sshd\[30830\]: Invalid user administrator from 159.65.189.115
Sep 29 07:41:06 hcbbdb sshd\[30830\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.189.115
Sep 29 07:41:08 hcbbdb sshd\[30830\]: Failed password for invalid user administrator from 159.65.189.115 port 51106 ssh2
Sep 29 07:45:16 hcbbdb sshd\[31258\]: Invalid user Zmeu from 159.65.189.115
Sep 29 07:45:16 hcbbdb sshd\[31258\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.189.115
2019-09-29 15:59:18
14.189.240.138 attackspambots
Unauthorised access (Sep 29) SRC=14.189.240.138 LEN=52 TTL=118 ID=4027 DF TCP DPT=445 WINDOW=8192 SYN
2019-09-29 15:43:29
194.150.40.97 attackspam
Unauthorised access (Sep 29) SRC=194.150.40.97 LEN=40 TTL=245 ID=37377 TCP DPT=445 WINDOW=1024 SYN
2019-09-29 15:31:16
153.37.192.4 attackspam
Sep 29 09:30:08 OPSO sshd\[32062\]: Invalid user ftpuser from 153.37.192.4 port 56948
Sep 29 09:30:08 OPSO sshd\[32062\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=153.37.192.4
Sep 29 09:30:10 OPSO sshd\[32062\]: Failed password for invalid user ftpuser from 153.37.192.4 port 56948 ssh2
Sep 29 09:34:57 OPSO sshd\[943\]: Invalid user cacti from 153.37.192.4 port 37074
Sep 29 09:34:57 OPSO sshd\[943\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=153.37.192.4
2019-09-29 15:52:07
139.219.15.178 attackspam
Sep 29 09:21:57 OPSO sshd\[29120\]: Invalid user pul from 139.219.15.178 port 54730
Sep 29 09:21:57 OPSO sshd\[29120\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.219.15.178
Sep 29 09:22:00 OPSO sshd\[29120\]: Failed password for invalid user pul from 139.219.15.178 port 54730 ssh2
Sep 29 09:27:39 OPSO sshd\[31160\]: Invalid user jerry from 139.219.15.178 port 37982
Sep 29 09:27:39 OPSO sshd\[31160\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.219.15.178
2019-09-29 15:40:32
157.230.247.239 attack
2019-09-29T07:35:03.870062abusebot-7.cloudsearch.cf sshd\[11411\]: Invalid user accounts from 157.230.247.239 port 39048
2019-09-29 15:50:11
122.154.241.134 attackspam
Sep 28 21:49:27 web1 sshd\[14792\]: Invalid user test from 122.154.241.134
Sep 28 21:49:27 web1 sshd\[14792\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.154.241.134
Sep 28 21:49:29 web1 sshd\[14792\]: Failed password for invalid user test from 122.154.241.134 port 26996 ssh2
Sep 28 21:54:21 web1 sshd\[15225\]: Invalid user zhen from 122.154.241.134
Sep 28 21:54:21 web1 sshd\[15225\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.154.241.134
2019-09-29 15:56:54
193.47.72.15 attackspambots
Sep 29 07:14:48 vtv3 sshd\[17724\]: Invalid user anamaria from 193.47.72.15 port 57267
Sep 29 07:14:48 vtv3 sshd\[17724\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.47.72.15
Sep 29 07:14:50 vtv3 sshd\[17724\]: Failed password for invalid user anamaria from 193.47.72.15 port 57267 ssh2
Sep 29 07:19:21 vtv3 sshd\[20061\]: Invalid user office from 193.47.72.15 port 49903
Sep 29 07:19:21 vtv3 sshd\[20061\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.47.72.15
Sep 29 07:32:09 vtv3 sshd\[26718\]: Invalid user denver from 193.47.72.15 port 56040
Sep 29 07:32:09 vtv3 sshd\[26718\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.47.72.15
Sep 29 07:32:12 vtv3 sshd\[26718\]: Failed password for invalid user denver from 193.47.72.15 port 56040 ssh2
Sep 29 07:36:28 vtv3 sshd\[28848\]: Invalid user test from 193.47.72.15 port 48677
Sep 29 07:36:28 vtv3 sshd\[28848\]: pam_un
2019-09-29 15:27:59
142.44.160.173 attack
Sep 29 06:14:18 sshgateway sshd\[28764\]: Invalid user monitor from 142.44.160.173
Sep 29 06:14:18 sshgateway sshd\[28764\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.44.160.173
Sep 29 06:14:20 sshgateway sshd\[28764\]: Failed password for invalid user monitor from 142.44.160.173 port 46732 ssh2
2019-09-29 15:25:48
192.144.132.172 attack
Sep 29 10:12:24 server sshd\[32680\]: User root from 192.144.132.172 not allowed because listed in DenyUsers
Sep 29 10:12:24 server sshd\[32680\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.144.132.172  user=root
Sep 29 10:12:26 server sshd\[32680\]: Failed password for invalid user root from 192.144.132.172 port 49590 ssh2
Sep 29 10:18:12 server sshd\[28591\]: User root from 192.144.132.172 not allowed because listed in DenyUsers
Sep 29 10:18:12 server sshd\[28591\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.144.132.172  user=root
2019-09-29 15:39:59

Recently Reported IPs

252.118.226.225 108.68.40.140 13.82.178.71 185.176.77.243
191.34.32.101 159.147.165.203 184.82.194.198 105.242.165.159
78.238.51.33 40.34.96.18 104.215.98.192 74.124.215.139
2a03:2880:f242:00cb:face:b00c:0000:43fe 90.138.119.94 184.47.221.114 110.229.162.38
190.123.85.9 39.143.201.193 96.218.98.83 94.251.62.141