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: Yongin-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:
query : 121.133.164.83


# KOREAN(UTF8)

조회하신 IPv4주소는 한국인터넷진흥원으로부터 아래의 관리대행자에게 할당되었으며, 할당 정보는 다음과 같습니다.

[ 네트워크 할당 정보 ]
IPv4주소           : 121.128.0.0 - 121.159.255.255 (/11)
기관명             : 주식회사 케이티
서비스명           : KORNET
주소               : 경기도 성남시 분당구 불정로 90
우편번호           : 13606
할당일자           : 20060417

이름               : IP주소 담당자
전화번호           : +82-2-500-6630
전자우편           : kornet_ip@kt.com

조회하신 IPv4주소는 위의 관리대행자로부터 아래의 사용자에게 할당되었으며, 할당 정보는 다음과 같습니다.
--------------------------------------------------------------------------------


[ 네트워크 할당 정보 ]
IPv4주소           : 121.133.164.0 - 121.133.164.255 (/24)
기관명             : (주) 케이티
네트워크 구분      : CUSTOMER
주소               : 경기도 성남시 분당구 불정로 90
우편번호           : 13606
할당내역 등록일    : 20200603

이름               : IP주소 담당자
전화번호           : +82-2-500-6630
전자우편           : kornet_ip@kt.com


# ENGLISH

KRNIC is not an ISP but a National Internet Registry similar to APNIC.

[ Network Information ]
IPv4 Address       : 121.128.0.0 - 121.159.255.255 (/11)
Organization Name  : Korea Telecom
Service Name       : KORNET
Address            : Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
Zip Code           : 13606
Registration Date  : 20060417

Name               : IP Manager
Phone              : +82-2-500-6630
E-Mail             : kornet_ip@kt.com

--------------------------------------------------------------------------------

More specific assignment information is as follows.

[ Network Information ]
IPv4 Address       : 121.133.164.0 - 121.133.164.255 (/24)
Organization Name  : Korea Telecom
Network Type       : CUSTOMER
Address            : 90 Buljeongro Bundang-Gu Seongnam-Si Gyeonggi-Do
Zip Code           : 13606
Registration Date  : 20200603

Name               : IP Manager
Phone              : +82-2-500-6630
E-Mail             : kornet_ip@kt.com


- KISA/KRNIC WHOIS Service -
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 121.133.164.83
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 42763
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.133.164.83.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2026032301 1800 900 604800 86400

;; Query time: 4 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Mar 24 03:23:42 CST 2026
;; MSG SIZE  rcvd: 107
Host info
Host 83.164.133.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 83.164.133.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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177.8.155.38 attackbots
SMTP-sasl brute force
...
2019-06-21 21:56:51
139.199.248.153 attackspambots
Jun 21 12:50:49 lnxmail61 sshd[14204]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.248.153
Jun 21 12:50:49 lnxmail61 sshd[14204]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.248.153
2019-06-21 22:23:05
51.255.98.234 attackspam
Automatic report generated by Wazuh
2019-06-21 21:24:09
101.99.13.137 attack
445/tcp
[2019-06-21]1pkt
2019-06-21 22:02:38
200.81.125.143 attackbotsspam
Jun 21 15:51:26 server01 sshd\[30822\]: Invalid user user from 200.81.125.143
Jun 21 15:51:26 server01 sshd\[30822\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.81.125.143
Jun 21 15:51:28 server01 sshd\[30822\]: Failed password for invalid user user from 200.81.125.143 port 50326 ssh2
...
2019-06-21 22:21:05
178.137.80.111 attackbotsspam
PHI,WP GET /wp-includes/wlwmanifest.xml
GET /blog/wp-includes/wlwmanifest.xml
GET /web/wp-includes/wlwmanifest.xml
GET /wordpress/wp-includes/wlwmanifest.xml
GET /website/wp-includes/wlwmanifest.xml
GET /wp/wp-includes/wlwmanifest.xml
GET /news/wp-includes/wlwmanifest.xml
GET /2015/wp-includes/wlwmanifest.xml
GET /2016/wp-includes/wlwmanifest.xml
GET /2017/wp-includes/wlwmanifest.xml
GET /2018/wp-includes/wlwmanifest.xml
GET /shop/wp-includes/wlwmanifest.xml
GET /wp1/wp-includes/wlwmanifest.xml
GET /test/wp-includes/wlwmanifest.xml
GET /media/wp-includes/wlwmanifest.xml
GET /wp2/wp-includes/wlwmanifest.xml
2019-06-21 21:13:44
79.110.131.129 attackspambots
445/tcp
[2019-06-21]1pkt
2019-06-21 21:15:18
142.44.202.51 attackspam
142.44.202.51 - - [21/Jun/2019:11:14:16 +0200] "GET /wp-includes/css/modules.php HTTP/1.1" 404 16363 "-" "python-requests/2.18.4"
142.44.202.51 - - [21/Jun/2019:11:14:20 +0200] "GET /wso.php HTTP/1.1" 404 16525 "-" "python-requests/2.18.4"
142.44.202.51 - - [21/Jun/2019:11:14:24 +0200] "GET /wp-content/plugins/upspy/ HTTP/1.1" 404 11538 "-" "python-requests/2.18.4"
142.44.202.51 - - [21/Jun/2019:11:14:28 +0200] "GET /wp-content/plugins/ubh/ HTTP/1.1" 404 11682 "-" "python-requests/2.18.4"
142.44.202.51 - - [21/Jun/2019:11:14:34 +0200] "GET /wp-content/plugins/vwcleanerplugin/bump.php?cache HTTP/1.1" 404 16592 "-" "python-requests/2.18.4"
...
2019-06-21 21:14:06
95.73.48.204 attackbots
Fail2Ban Ban Triggered
2019-06-21 21:38:11
77.40.3.189 attackbots
Rude login attack (303 tries in 1d)
2019-06-21 22:19:00
113.231.93.190 attack
5500/tcp
[2019-06-21]1pkt
2019-06-21 21:18:31
110.55.109.42 attack
Jun 21 15:38:39 bouncer sshd\[28732\]: Invalid user banet from 110.55.109.42 port 45957
Jun 21 15:38:39 bouncer sshd\[28732\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.55.109.42 
Jun 21 15:38:41 bouncer sshd\[28732\]: Failed password for invalid user banet from 110.55.109.42 port 45957 ssh2
...
2019-06-21 21:50:28
80.65.162.122 attack
19/6/21@07:33:05: FAIL: Alarm-Intrusion address from=80.65.162.122
...
2019-06-21 21:46:00
177.81.25.228 attackspam
Jun 20 11:17:43 our-server-hostname postfix/smtpd[8551]: connect from unknown[177.81.25.228]
Jun x@x
Jun x@x
Jun 20 11:17:46 our-server-hostname postfix/smtpd[8551]: lost connection after RCPT from unknown[177.81.25.228]
Jun 20 11:17:46 our-server-hostname postfix/smtpd[8551]: disconnect from unknown[177.81.25.228]
Jun 20 11:19:09 our-server-hostname postfix/smtpd[10351]: connect from unknown[177.81.25.228]
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun 20 11:19:18 our-server-hostname postfix/smtpd[10351]: lost connection after RCPT from unknown[177.81.25.228]
Jun 20 11:19:18 our-server-hostname postfix/smtpd[10351]: disconnect from unknown[177.81.25.228]
Jun 20 12:37:05 our-server-hostname postfix/smtpd[9427]: connect from unknown[177.81.25.228]
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun 20 12:37:14 our-server-hostname postfix/smtpd[9427]: lost connection after RCPT from unkno........
-------------------------------
2019-06-21 21:22:00
89.210.88.104 attackbotsspam
Telnet Server BruteForce Attack
2019-06-21 22:09:21

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