211.20.91.156
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- Chunghwa Telecom Data Communication Business Group
- Usage Type
- Fixed Line ISP
- ASN
- AS3462
- Domain Name
- cht.com.tw
- Country
- 🇹🇼 Taiwan
- City
- Taichung, Taiwan
No reports in the last 60 days
211.20.91.156 has been reported 63 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
63 from
28 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇦🇺 LiftUp Hosting |
Honeypot hit: Unauthorized connection attempt detected on 23/TELNET
|
Hacking Port Scan | |
| 🇦🇷 Bruno |
Port Scanner: 211.20.91.156
|
Port Scan | |
| 🇺🇸 MPL |
tcp/23 (2 or more attempts)
|
Port Scan | |
| 🇦🇹 begou.dev |
[Threat Intelligence] Port Scanning and/or Unauthorized access -> TCP/23
|
Port Scan | |
| 🇫🇷 security.rdmc.fr |
Port Scan Attack proto:TCP src:1649 dst:23
|
Port Scan | |
| Anonymous |
Try to connect to Port_Scan_23_stealth
|
Port Scan | |
| Anonymous |
Unauthorized connection to Telnet port 23
|
Port Scan | |
| Anonymous |
Unauthorized connection attempt on Port 23
|
Port Scan Hacking Exploited Host | |
| 🇺🇸 RAP |
2026-06-12 10:38:49 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | |
| 🇺🇸 RAP |
2026-06-12 04:39:23 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | |
| 🇺🇸 RAP |
2026-06-10 19:13:50 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | |
| 🇧🇾 sashan |
2026-06-10T08:48:20.728040+03:00 gate kernel: nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=211.20.91.156 DST=xxx.xxx.xxx.xxx LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=11182 DF PROTO=TCP SPT=1102 DPT=23 WINDOW=5840 RES=0x00 SYN URGP=0
...
|
Port Scan | |
| 🇺🇸 MPL |
tcp/23 (2 or more attempts)
|
Port Scan | |
| 🇫🇷 Hiigara |
connection attempt : 211.20.91.156 on port : tcp/23 (Telnet)
|
Port Scan | |
| 🇺🇸 MPL |
tcp/23 (3 or more attempts)
|
Port Scan |
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