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 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 <<>> 121.145.172.157
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52679
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.145.172.157.		IN	A

;; AUTHORITY SECTION:
.			512	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022091400 1800 900 604800 86400

;; Query time: 93 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Sep 14 20:46:58 CST 2022
;; MSG SIZE  rcvd: 108
Host info
Host 157.172.145.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 157.172.145.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
217.113.28.7 attackbots
Nov 20 15:15:16 mail sshd[12073]: Invalid user pcap from 217.113.28.7
Nov 20 15:15:16 mail sshd[12073]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.113.28.7
Nov 20 15:15:16 mail sshd[12073]: Invalid user pcap from 217.113.28.7
Nov 20 15:15:18 mail sshd[12073]: Failed password for invalid user pcap from 217.113.28.7 port 52175 ssh2
Nov 20 15:43:45 mail sshd[15499]: Invalid user iulian from 217.113.28.7
...
2019-11-21 01:34:15
43.252.159.78 attackbotsspam
Automatic report - Port Scan Attack
2019-11-21 01:26:39
182.61.162.54 attackbotsspam
Brute-force attempt banned
2019-11-21 01:39:27
121.57.224.91 attack
Unauthorised access (Nov 20) SRC=121.57.224.91 LEN=60 TTL=47 ID=8378 DF TCP DPT=8080 WINDOW=14100 SYN
2019-11-21 01:23:46
79.140.3.69 attack
2019-11-20 15:06:23 H=79-140-3-69.broadband.tenet.odessa.ua [79.140.3.69]:13582 I=[10.100.18.22]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=79.140.3.69)
2019-11-20 15:06:23 unexpected disconnection while reading SMTP command from 79-140-3-69.broadband.tenet.odessa.ua [79.140.3.69]:13582 I=[10.100.18.22]:25 (error: Connection reset by peer)
2019-11-20 15:36:15 H=79-140-3-69.broadband.tenet.odessa.ua [79.140.3.69]:20736 I=[10.100.18.22]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=79.140.3.69)


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=79.140.3.69
2019-11-21 01:29:17
78.128.113.123 attackbotsspam
Nov 20 18:20:32 mail postfix/smtpd[16873]: warning: unknown[78.128.113.123]: SASL PLAIN authentication failed: 
Nov 20 18:21:54 mail postfix/smtpd[16723]: warning: unknown[78.128.113.123]: SASL PLAIN authentication failed: 
Nov 20 18:26:18 mail postfix/smtpd[16671]: warning: unknown[78.128.113.123]: SASL PLAIN authentication failed:
2019-11-21 01:29:55
222.186.175.212 attackspam
$f2bV_matches
2019-11-21 01:34:02
190.210.223.166 attackspam
TCP Port Scanning
2019-11-21 01:12:24
185.233.185.189 attackbotsspam
Nov 20 06:33:15 php1 sshd\[17013\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.233.185.189  user=root
Nov 20 06:33:16 php1 sshd\[17013\]: Failed password for root from 185.233.185.189 port 45448 ssh2
Nov 20 06:36:52 php1 sshd\[17334\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.233.185.189  user=root
Nov 20 06:36:55 php1 sshd\[17334\]: Failed password for root from 185.233.185.189 port 17846 ssh2
Nov 20 06:40:43 php1 sshd\[17811\]: Invalid user korrie from 185.233.185.189
2019-11-21 01:05:54
193.124.4.151 attackbots
Automatic report - Port Scan Attack
2019-11-21 01:42:37
5.55.126.208 attackspam
2019-11-20 13:57:42 H=ppp005055126208.access.hol.gr [5.55.126.208]:10082 I=[10.100.18.25]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=5.55.126.208)
2019-11-20 13:57:42 unexpected disconnection while reading SMTP command from ppp005055126208.access.hol.gr [5.55.126.208]:10082 I=[10.100.18.25]:25 (error: Connection reset by peer)
2019-11-20 15:36:33 H=ppp005055126208.access.hol.gr [5.55.126.208]:32037 I=[10.100.18.25]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=5.55.126.208)

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=5.55.126.208
2019-11-21 01:30:23
181.164.1.54 attackbotsspam
2019-11-20 14:26:31 H=(54-1-164-181.fibertel.com.ar) [181.164.1.54]:41227 I=[10.100.18.21]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=181.164.1.54)
2019-11-20 14:26:32 unexpected disconnection while reading SMTP command from (54-1-164-181.fibertel.com.ar) [181.164.1.54]:41227 I=[10.100.18.21]:25 (error: Connection reset by peer)
2019-11-20 15:36:33 H=(54-1-164-181.fibertel.com.ar) [181.164.1.54]:10162 I=[10.100.18.21]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=181.164.1.54)


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=181.164.1.54
2019-11-21 01:31:26
94.242.175.186 attack
2019-11-20 14:32:33 H=(186.net-94.242.175.kaluga.ru) [94.242.175.186]:10161 I=[10.100.18.23]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=94.242.175.186)
2019-11-20 14:32:34 unexpected disconnection while reading SMTP command from (186.net-94.242.175.kaluga.ru) [94.242.175.186]:10161 I=[10.100.18.23]:25 (error: Connection reset by peer)
2019-11-20 15:36:45 H=(186.net-94.242.175.kaluga.ru) [94.242.175.186]:14090 I=[10.100.18.23]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=94.242.175.186)


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=94.242.175.186
2019-11-21 01:34:41
89.150.56.170 attackbots
Automatic report - Banned IP Access
2019-11-21 01:37:26
71.218.152.149 attackbots
71.218.152.149
2019-11-21 01:25:40

Recently Reported IPs

38.242.139.248 124.152.1.173 92.241.235.64 46.161.62.202
27.43.206.35 165.90.127.178 188.17.157.19 185.128.153.59
194.163.146.50 197.211.124.65 85.38.107.132 220.89.6.168
2.203.55.158 193.202.82.60 147.78.181.182 220.137.165.19
18.142.225.228 165.22.225.217 217.145.227.215 200.71.110.152