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: Korea (the Republic of)

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 <<>> 121.125.231.13
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9916
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.125.231.13.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025022700 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 27 20:40:33 CST 2025
;; MSG SIZE  rcvd: 107
Host info
Host 13.231.125.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 13.231.125.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
36.79.251.13 attack
1585225413 - 03/26/2020 13:23:33 Host: 36.79.251.13/36.79.251.13 Port: 445 TCP Blocked
2020-03-27 00:09:56
110.53.234.203 attackspambots
ICMP MH Probe, Scan /Distributed -
2020-03-26 23:19:39
121.15.2.178 attack
SSH authentication failure x 6 reported by Fail2Ban
...
2020-03-26 23:22:37
185.151.242.185 attack
Fail2Ban Ban Triggered
2020-03-26 23:27:07
159.65.172.240 attackspambots
Mar 26 14:35:27 v22018086721571380 sshd[17130]: Failed password for invalid user ys from 159.65.172.240 port 34522 ssh2
Mar 26 15:37:45 v22018086721571380 sshd[27646]: Failed password for invalid user brood from 159.65.172.240 port 60984 ssh2
2020-03-26 23:48:42
110.53.234.187 attackspam
ICMP MH Probe, Scan /Distributed -
2020-03-26 23:36:25
49.235.49.150 attackspam
IP blocked
2020-03-26 23:50:51
146.88.240.4 attackbots
03/26/2020-10:33:17.532251 146.88.240.4 Protocol: 17 ET DROP Dshield Block Listed Source group 1
2020-03-26 23:51:13
71.167.119.2 attack
Automatic report - Port Scan Attack
2020-03-26 23:18:15
123.207.78.83 attack
Brute force acceess on sshd
2020-03-26 23:22:10
40.107.6.109 attack
Email spam message
2020-03-26 23:34:50
188.128.50.41 attackspam
*Port Scan* detected from 188.128.50.41 (RU/Russia/-). 11 hits in the last 180 seconds
2020-03-26 23:35:24
198.199.73.239 attackspam
Mar 26 15:43:43 163-172-32-151 sshd[9451]: Invalid user nazrul from 198.199.73.239 port 47668
...
2020-03-26 23:28:26
110.53.234.113 attackbots
ICMP MH Probe, Scan /Distributed -
2020-03-26 23:57:57
51.89.200.123 attack
(mod_security) mod_security (id:210492) triggered by 51.89.200.123 (FR/France/ip123.ip-51-89-200.eu): 5 in the last 3600 secs
2020-03-27 00:01:43

Recently Reported IPs

174.81.37.29 143.5.174.137 126.182.180.197 19.67.103.193
70.184.170.158 148.20.160.222 45.146.131.183 77.20.117.238
135.71.219.67 238.195.195.213 128.138.36.69 155.134.148.217
229.111.175.235 165.210.237.250 39.161.197.91 83.215.130.36
87.180.166.145 144.39.81.121 178.226.241.182 7.151.166.146