121.183.122.199

Recent Activity This IP has received recent abuse reports, which causes the score to increase.
Abuse Confidence Score
100% Critical
52 reports
44 reporters · latest 15 minutes ago
ISP
Korea Telecom
Usage Type
Fixed Line ISP
ASN
AS4766
Domain Name
kt.com
Country
🇰🇷 Korea (the Republic of)
City
Gumi, Gyeongsangbuk-do
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Abuse Reports

Total reports
52 from 44 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇺🇸 United States of America 8 🇩🇪 Germany 6 🇫🇷 France 5
Most common categories Brute-Force 49 Hacking 5 Port Scan 3 SSH 2 Open Proxy 2
Recent reports We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.
Reporter IoA Timestamp (UTC) Comment Categories
🇵🇱 bmino.pl
Autoban IP(2): 121.183.122.199 - Hostname: Korea Telecom - City: Gumi - Country: South Korea - Organization: Korea Telecom - Reason: Suspicious activity detected by Fail2ban
Brute-Force
🇮🇳 TFG-Server
Automated block: Email password guessing x3 in 24 h (mail ports only)
Brute-Force
🇫🇷 tecnicorioja
SASL LOGIN authentication failed Nov 09 04:35:27
Brute-Force
🇮🇩 xveil
2026-11-09T13:16:43.252641 mail-honeypot postfix/submission/smtpd[9103]: warning: unknown[121.183.122.199]: SASL LOGIN authentication failed: authentication failure ...
Brute-Force
🇷🇴 iulianh
25,465,587
Brute-Force SSH
🇧🇪 fpoulet
Blocked by Fail2Ban (Postfix BruteForce)
Brute-Force SSH
🇮🇩 xveil
2026-11-09T11:53:06.185378 mail-honeypot postfix/submission/smtpd[31678]: warning: unknown[121.183.122.199]: SASL LOGIN authentication failed: authentication failure ...
Brute-Force
🇺🇸 adnscom.com
IPS trigger: dovecot scanning/attack
Brute-Force Hacking
🇳🇱 Slartibartfast
SMTP Brute Force
Brute-Force
🇫🇮 singertc
Blocked by fail2ban on nospam4.singer-tc.de
Brute-Force Web App Attack
🇺🇸 entangled_mongoose
Failed IMAP authentication with username 'user_sha_29fff@domain_sha_023c5'.
Brute-Force Hacking
🇬🇧 andypiper
CrowdSec ban for AbuseIPDB Top List
Brute-Force Web App Attack
🇸🇪 triplecode
Reported from hMailServer
Hacking
🇩🇪 LRob
SMTP AUTH probe | 2026-11-09 01:50 UTC
Port Scan
🇿🇦 maximonline.co.za
Brute Force SMTP AUTH Attack
Brute-Force

Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown

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