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: South Korea

Internet Service Provider: unknown

Hostname: unknown

Organization: Korea Telecom

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 <<>> 121.181.140.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16223
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019041101 1800 900 604800 86400

;; Query time: 2 msec
;; SERVER: 67.207.67.3#53(67.207.67.3)
;; WHEN: Thu Apr 11 19:57:11 +08 2019
;; MSG SIZE  rcvd: 118

Host info
Host 57.140.181.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		67.207.67.3
Address:	67.207.67.3#53

** server can't find 57.140.181.121.in-addr.arpa: NXDOMAIN

Related IP info:
Related comments:
IP Type Details Datetime
51.38.231.36 attackspam
Invalid user nina from 51.38.231.36 port 45038
2020-05-01 06:13:56
222.186.180.147 attackspam
Fail2Ban - SSH Bruteforce Attempt
2020-05-01 06:34:54
185.173.35.49 attackspambots
3000/tcp 5901/tcp 110/tcp...
[2020-03-03/04-29]49pkt,33pt.(tcp),4pt.(udp)
2020-05-01 06:09:30
198.108.67.86 attackspam
2548/tcp 12211/tcp 8019/tcp...
[2020-02-28/04-29]98pkt,92pt.(tcp)
2020-05-01 06:22:48
198.20.87.98 attackbots
Fail2Ban Ban Triggered
2020-05-01 06:27:49
115.159.185.71 attackbotsspam
Apr 30 20:49:16 ws26vmsma01 sshd[122795]: Failed password for root from 115.159.185.71 port 55222 ssh2
...
2020-05-01 06:10:51
1.196.223.50 attackbotsspam
Invalid user ubuntu from 1.196.223.50 port 58992
2020-05-01 06:23:18
61.189.43.58 attackspam
May  1 00:00:17 web2 sshd[2047]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.189.43.58
May  1 00:00:18 web2 sshd[2047]: Failed password for invalid user ftp_user from 61.189.43.58 port 44398 ssh2
2020-05-01 06:38:26
193.202.45.202 attackbotsspam
193.202.45.202 was recorded 19 times by 8 hosts attempting to connect to the following ports: 5060. Incident counter (4h, 24h, all-time): 19, 73, 1524
2020-05-01 06:45:39
153.52.105.101 attackbotsspam
2020-04-30T22:53:56.595108+02:00 lumpi kernel: [13569774.055647] INPUT:DROP:SPAMHAUS_DROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=153.52.105.101 DST=78.46.199.189 LEN=40 TOS=0x00 PREC=0x00 TTL=76 ID=25706 DF PROTO=TCP SPT=55742 DPT=25 WINDOW=29200 RES=0x00 SYN URGP=0 
...
2020-05-01 06:21:40
109.123.117.235 attackspambots
Honeypot attack, port: 445, PTR: scanners.labs.rapid7.com.
2020-05-01 06:43:49
46.0.203.166 attackspambots
Apr 30 18:32:22 NPSTNNYC01T sshd[31679]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.0.203.166
Apr 30 18:32:23 NPSTNNYC01T sshd[31679]: Failed password for invalid user ben from 46.0.203.166 port 57970 ssh2
Apr 30 18:36:30 NPSTNNYC01T sshd[32035]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.0.203.166
...
2020-05-01 06:45:11
177.242.106.198 attack
Honeypot attack, port: 445, PTR: customer-LEON-MCA-106-198.megared.net.mx.
2020-05-01 06:28:08
189.163.40.196 attackbots
Honeypot attack, port: 81, PTR: dsl-189-163-40-196-dyn.prod-infinitum.com.mx.
2020-05-01 06:41:23
124.76.237.124 attackspam
37215/tcp 23/tcp...
[2020-04-13/30]14pkt,2pt.(tcp)
2020-05-01 06:44:47

Recently Reported IPs

106.47.126.81 195.231.8.114 81.228.147.168 111.40.98.212
188.213.49.103 192.245.169.226 14.232.166.111 80.13.251.203
96.44.152.16 110.45.247.162 104.168.213.80 42.200.252.125
132.232.101.100 62.165.46.210 82.196.8.10 74.82.47.28
187.45.109.29 207.182.143.7 103.48.83.128 152.240.208.176