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: Seongnam-si

Region: Gyeonggi-do

Country: South Korea

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 <<>> 121.126.139.203
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33683
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			299	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020090202 1800 900 604800 86400

;; Query time: 67 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Sep 03 12:27:21 CST 2020
;; MSG SIZE  rcvd: 119
Host info
Host 203.139.126.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 203.139.126.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
37.153.138.108 attack
Jan 31 18:25:49 silence02 sshd[2164]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.153.138.108
Jan 31 18:25:51 silence02 sshd[2164]: Failed password for invalid user test from 37.153.138.108 port 52920 ssh2
Jan 31 18:28:54 silence02 sshd[2279]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.153.138.108
2020-02-01 04:35:16
68.183.142.240 attack
Jan 31 19:30:09 cvbnet sshd[14549]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.142.240 
Jan 31 19:30:10 cvbnet sshd[14549]: Failed password for invalid user test2 from 68.183.142.240 port 60960 ssh2
...
2020-02-01 04:14:04
191.32.218.21 attack
Jan 31 10:00:07 eddieflores sshd\[30888\]: Invalid user mayura from 191.32.218.21
Jan 31 10:00:07 eddieflores sshd\[30888\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.32.218.21
Jan 31 10:00:09 eddieflores sshd\[30888\]: Failed password for invalid user mayura from 191.32.218.21 port 59754 ssh2
Jan 31 10:03:54 eddieflores sshd\[31190\]: Invalid user mayurika from 191.32.218.21
Jan 31 10:03:54 eddieflores sshd\[31190\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.32.218.21
2020-02-01 04:06:02
209.94.195.212 attackbotsspam
Unauthorized connection attempt detected from IP address 209.94.195.212 to port 2220 [J]
2020-02-01 04:14:49
54.36.163.188 attack
Unauthorized connection attempt detected from IP address 54.36.163.188 to port 2220 [J]
2020-02-01 04:10:24
79.37.34.74 attackbots
Automatic report - Port Scan Attack
2020-02-01 04:20:39
213.82.88.181 attackbotsspam
Jan 31 17:29:16 prox sshd[8543]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.82.88.181 
Jan 31 17:29:17 prox sshd[8543]: Failed password for invalid user ubuntu from 213.82.88.181 port 44078 ssh2
2020-02-01 04:24:12
177.12.178.66 attackbotsspam
Automatic report - Port Scan Attack
2020-02-01 03:57:08
111.229.188.102 attackspambots
Jan 31 20:30:47 MK-Soft-Root2 sshd[26806]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.188.102 
Jan 31 20:30:49 MK-Soft-Root2 sshd[26806]: Failed password for invalid user ftp from 111.229.188.102 port 56838 ssh2
...
2020-02-01 04:24:35
51.255.132.213 attackspam
Unauthorized connection attempt detected from IP address 51.255.132.213 to port 2220 [J]
2020-02-01 03:51:44
173.244.163.106 attackspam
Jan 31 16:59:16 firewall sshd[6058]: Invalid user 123 from 173.244.163.106
Jan 31 16:59:18 firewall sshd[6058]: Failed password for invalid user 123 from 173.244.163.106 port 33110 ssh2
Jan 31 17:01:49 firewall sshd[6129]: Invalid user passw0rd from 173.244.163.106
...
2020-02-01 04:02:21
113.160.244.144 attackspambots
Unauthorized connection attempt detected from IP address 113.160.244.144 to port 2220 [J]
2020-02-01 04:29:17
51.79.94.66 attackbotsspam
Spammer
2020-02-01 03:58:50
122.51.14.182 attackspam
Port scan detected on ports: 1433[TCP], 1433[TCP], 1433[TCP]
2020-02-01 04:24:55
104.131.84.59 attack
Fail2Ban Ban Triggered
2020-02-01 04:25:08

Recently Reported IPs

110.210.93.211 70.227.65.30 167.22.180.157 106.35.183.75
82.82.144.65 102.173.151.97 145.45.23.219 159.113.229.50
50.222.59.56 111.244.238.140 58.28.182.14 17.85.85.22
219.197.208.169 49.245.63.23 179.10.50.255 205.246.9.168
112.182.231.185 108.235.55.189 52.58.35.183 126.152.123.239