AbuseIPDB » 172.81.102.139
172.81.102.139 was found in our database!
This IP was reported 117 times. Confidence of Abuse is 100%: ?
| ISP | CTCSCI TECH LIMITED |
|---|---|
| Usage Type | Data Center/Web Hosting/Transit |
| ASN | AS400618 |
| Domain Name | ctcsci.com |
| Country | 🇯🇵 Japan |
| City | Tokyo, Tokyo |
IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.
IP Abuse Reports for 172.81.102.139:
This IP address has been reported a total of 117 times from 64 distinct sources. 172.81.102.139 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 | |
|---|---|---|---|---|
| 🇩🇪 David Ferneding |
|
Port Scan Hacking Brute-Force | ||
| 🇺🇸 MPL |
tcp/23 (2 or more attempts)
|
Port Scan | ||
| 🇫🇷 zulzeen |
[incypit-web] Blocked by SysWarden Firewall [BLOCK] (Telnet IoT Attack)
|
IoT Targeted Brute-Force | ||
| 🇳🇱 VMHeaven.io |
Blocked by UFW [52869/tcp]
Source port: 27798
TTL: 43
Packet length: 40
|
Port Scan | ||
| 🇺🇸 RAP |
2026-06-21 17:47:52 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | ||
| 🇺🇸 RAP |
2026-06-21 14:32:24 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | ||
| 🇷🇺 russian-kurort.ru |
SYN flood
|
DDoS Attack Hacking | ||
| 🇳🇱 ByeByte API |
|
Port Scan | ||
| 🇺🇸 RAP |
2026-06-21 06:34:04 UTC Unauthorized activity to TCP port 23. Telnet
|
Port Scan | ||
| 🇫🇷 security.rdmc.fr |
Port Scan Attack proto:TCP src:62151 dst:23
|
Port Scan | ||
| 🇺🇸 RAP |
2026-06-21 05:54:10 UTC Unauthorized activity to TCP port 2323. Telnet
|
Port Scan | ||
| 🇫🇷 EDSL |
[SRV-VPN1] Blocked by SysWarden Firewall (Port Scan / Probing)
|
Port Scan | ||
| 🇭🇰 mutebot.net |
SRC=172.81.102.139, PROTO=TCP, SPT=38486, DPT=23
|
Port Scan | ||
| 🇩🇪 bescared |
F2B - Malicious activity detected. Unauthorized connection attempt: Telnet. -151302cd-
|
Port Scan | ||
| 🇩🇪 Admins@FBN |
FW-PortScan: Traffic Blocked srcport=50896 dstport=23
|
Port Scan |
Showing 1 to 15 of 117 reports
Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown 🚩