121.84.199.172
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- OPTAGE Inc.
- Usage Type
- Fixed Line ISP
- ASN
- AS17511
- Domain Name
- optage.co.jp
- Country
- 🇯🇵 Japan
- City
- Akashi, Hyogo
No reports in the last 60 days
121.84.199.172 has been reported 76 times. The most recent report is from .
The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.
Abuse Reports
Total reports
76 from
32 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇩🇪 Grizzlytools |
Kingcopy(AI-IDS)RouterOS: Portscanner detected.
|
Port Scan | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force | |
| 🇺🇸 RAP |
2025-12-05 21:32:56 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | |
| 🇺🇸 RAP |
2025-12-05 06:08:52 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | |
| 🇫🇷 security.rdmc.fr |
Port Scan Attack proto:TCP src:2255 dst:23
|
Port Scan | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force | |
| 🇺🇸 MPL |
tcp/23 (2 or more attempts)
|
Port Scan | |
| 🇷🇺 nyuuzyou |
{"action": "connection", "dest_ip": "0.0.0.0", "dest_port": "23", "server": "telnet_server", "src_ip": "121.84.199.172", "src_port": "3333", "timestamp": "2025-12-04T10:48:27.813799"}
|
Port Scan Brute-Force | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force | |
| 🇬🇧 webnestify |
[Webnestify Honeypot - UK] Unauthorized connection attempt on port 23.
|
Port Scan Hacking Brute-Force | |
| 🇺🇸 RAP |
2025-12-02 20:48:01 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | |
| 🇫🇷 security.rdmc.fr |
Port Scan Attack proto:TCP src:2445 dst:23
|
Port Scan | |
| 🇺🇸 sumnone |
Port probing on unauthorized port 23
|
Port Scan Hacking Exploited Host | |
| 🇫🇷 Hiigara |
connection attempt : 121.84.199.172 on port : tcp/23 (Telnet)
|
Port Scan | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/23
|
Brute-Force |
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