AbuseIPDB » 121.155.28.231

121.155.28.231 was found in our database!

This IP was reported 36 times. Confidence of Abuse is 100%: ?

100%
ISP Korea Telecom
Usage Type Fixed Line ISP
ASN AS4766
Domain Name kt.com
Country ๐Ÿ‡ฐ๐Ÿ‡ท Korea (the Republic of)
City Seoul, Seoul

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

IP Abuse Reports for 121.155.28.231:

This IP address has been reported a total of 36 times from 27 distinct sources. 121.155.28.231 was first reported on , and the most recent report was .

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
๐Ÿ‡ง๐Ÿ‡ท noconex
Port Scan Brute-Force SSH
๐Ÿ‡ซ๐Ÿ‡ฎ mikkopal88
Telnet probe or brute-force attempt
Port Scan Brute-Force
๐Ÿ‡บ๐Ÿ‡ธ sumnone
Port probing on unauthorized port 23
Port Scan Hacking Exploited Host
๐Ÿ‡บ๐Ÿ‡ธ Axel
Port Scan IoT Targeted
๐Ÿ‡ฌ๐Ÿ‡ง Stuart Reid
...
SSH
Anonymous
denied traffic to a honeypot network. destination port 23.
Port Scan Hacking
Anonymous
denied Telnet access attempt. destination port 23.
Port Scan Brute-Force
๐Ÿ‡ฎ๐Ÿ‡น CoreTech srl
[DC: IP:151.1.252.27] ntopng alert: blacklisted_client_contact
Hacking
๐Ÿ‡ท๐Ÿ‡ธ Scan
MultiHost/MultiPort Probe, Scan, Hack -
Port Scan Hacking
๐Ÿ‡บ๐Ÿ‡ธ RAP
2026-08-22 13:57:38 UTC Unauthorized activity to TCP port 23. Telnet
Port Scan
๐Ÿ‡บ๐Ÿ‡ธ MPL
tcp ports: 23,22 (8 or more attempts)
Port Scan
Anonymous
PORT & IP Scan.
Port Scan Brute-Force
๐Ÿ‡ง๐Ÿ‡ท noconex
Port Scan Brute-Force SSH
๐Ÿ‡บ๐Ÿ‡ธ MPL
tcp ports: 23,22 (3 or more attempts)
Port Scan
๐Ÿ‡บ๐Ÿ‡ธ RAP
2026-08-21 08:26:52 UTC Unauthorized activity to TCP port 23. Telnet
Port Scan

Showing 1 to 15 of 36 reports


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