AbuseIPDB » 121.187.239.21
121.187.239.21 was found in our database!
This IP was reported 242 times. Confidence of Abuse is 0%: ?
| ISP | Korea Telecom |
|---|---|
| Usage Type | Fixed Line ISP |
| ASN | AS4766 |
| Domain Name | kt.com |
| Country | 🇰🇷 Korea (the Republic of) |
| City | Seoul, Seoul |
IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.
IP Abuse Reports for 121.187.239.21:
This IP address has been reported a total of 242 times from 61 distinct sources. 121.187.239.21 was first reported on , and the most recent report was .
Old Reports: The most recent abuse report for this IP address is from . It is possible that this IP is no longer involved in abusive activities.
| Reporter | IoA Timestamp (UTC) | Comment | Categories | |
|---|---|---|---|---|
| 🇩🇪 Grizzlytools |
Kingcopy(AI-IDS)RouterOS: Portscanner detected.
|
Port Scan | ||
| 🇺🇸 RAP |
2025-07-09 10:00:42 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | ||
| 🇦🇷 Bruno |
Port Scanner: 121.187.239.21
|
Port Scan | ||
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force | ||
| 🇦🇹 urnilxfgbez |
Last 24 Hours suspicious: (DPT=445|DPT=3389|DPT=22|DPT=3306|DPT=8080|DPT=23|DPT=5900|DPT=1433)
|
Port Scan | ||
| 🇺🇸 MPL |
tcp/23 (2 or more attempts)
|
Port Scan | ||
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force | ||
| 🇳🇱 Deveroonie |
undefined on axolotlams [23/tcp].
|
Port Scan Hacking Brute-Force | ||
| 🇺🇸 RAP |
2025-07-07 16:29:35 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | ||
| 🇩🇪 ps-center |
SS4-W: TCP-Scanner. Port: 23
|
Port Scan | ||
| 🇦🇺 Block Rockin' Beats |
Attempted connection to TCP port 23
|
Port Scan | ||
| 🇩🇪 ps-center |
SS5-W: TCP-Scanner. Port: 23
|
Port Scan | ||
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force | ||
| 🇨🇳 yangfan |
UFW Blocked [23/TCP]
Source: 121.187.239.21:43098
TTL: 45
Lenth: 40
TOS: 0x00
|
Port Scan Hacking Brute-Force | ||
| 🇩🇪 guldkage |
Unauthorized connection attempt detected from IP address 121.187.239.21 to port 23 (ger-03) [C]
|
Brute-Force Exploited Host |
Showing 1 to 15 of 242 reports
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