123.13.71.172
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- China Unicom Henan province network
- Usage Type
- Fixed Line ISP
- ASN
- AS4837
- Domain Name
- chinaunicom.cn
- Country
- 🇨🇳 China
- City
- Zhengzhou, Henan
No reports in the last 60 days
123.13.71.172 has been reported 86 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
86 from
61 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇩🇪 Paul Smith |
Email Auth Brute force attack 8/8 in last day
|
Brute-Force | |
| 🇹🇷 ferique |
Real-time Intercept: SMTP attack. Reference: 2026-05-22 20:10:36.6132 Login failure: 123.13.71.172 SMTP
|
Brute-Force Email Spam | |
| 🇵🇾 SecOpsSL |
123.13.71.172 - - [22/May/2026:09:28:54 +0000] "POST /service/admin/soap/ HTTP/1.1" 500 489 "-" "-" 5
...
|
Hacking Web App Attack | |
| Anonymous |
Failed login attempt detected by Fail2Ban in plesk-postfix jail
|
Brute-Force | |
| Anonymous |
...
|
Brute-Force | |
| Anonymous |
|
Email Spam Brute-Force Exploited Host | |
| Anonymous |
IMAP password guessing
|
Brute-Force | |
| 🇬🇧 stom |
2026-05-22T11:08:03.989872ls1.tom2.co.uk postfix/smtps/smtpd[28634]: warning: unknown[123.13.71.172]: SASL LOGIN authentication failed: authentication failure
...
|
Brute-Force Email Spam | |
| 🇸🇮 basing |
2026-05-22 11:54:50 bs SASL PLAIN auth failed: rhost=123.13.71.172...
|
Brute-Force | |
| 🇩🇪 LRob |
SMTP brute-force detected by Fail2Ban in plesk-postfix jail
|
Email Spam Brute-Force | |
| 🇩🇪 samba.org |
spam (f2b h2)
|
Brute-Force | |
| 🇩🇪 mnpx |
SMTP brute forcing (2× over 2h:55m); first seen here 2026-05-19T19:40Z
|
Brute-Force | |
| Anonymous |
|
Brute-Force | |
| 🇩🇪 mnpx |
SMTP brute forcing (3× over 11h:28m); first seen here 2026-05-19T19:40Z
|
Brute-Force | |
| 🇭🇺 dd3589 |
2026-05-22T05:04:36.549247+02:00 <masked> exim[104661].notice: fixed_login authenticator failed for (nsg-corporate-62.201.186.122.airtel.in) [123.13.71.172]: 535 Incorrect authentication data ([email protected])
|
Brute-Force |
Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown