189.51.23.2 is blacklisted, reported for spam, and brute force attacks
1 brute force attacks, last activity .
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Sep 27, 2026 23:28:55 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Sep 27, 2026 23:28:55 | |
| Security FireWall | Not in list | - | Get Security Plugin |
| Block Lists | Data loading | - | Sign Up for API, Files, DNSBL & Online Access |
| Type of attacks | Spam, BruteForce | ||
Abuse reports
| There are currently no abuse reports for this email/IP. Report Abuse activity |
Details
| Network | 189.51.23.0/24parent network: 189.51.16.0/21 |
|---|---|
| Network Spam Rate | 7% |
| DNS name | 189-51-23-2.sempre.tec.br |
| AS number | 28198 |
| Org name | SEMPRE TELECOMUNICACOES LTDA |
| Location | Campo Belo, Minas Gerais, Brazil |
| IP Geolocation | lat: -20.9257; lon: -45.237 |
| Address | - |
| Phone | - |
| Website | isimples.com.br |
| AS spam rate | 5.78% |
| Websites hosted on 189.51.23.2 | Data loading |
Brute Force attacks log
| Date/time (GMT) | IP | Nickname | Event |
|---|
189.51.23.0/24 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 189.51.23.199(189-51-23-199.sempre.tec.br) | Aug 01, 2025 13:24:42 | Sep 29, 2026 14:44:55 | 4 |
| 2 | 189.51.23.2(189-51-23-2.sempre.tec.br) | Aug 20, 2025 04:54:18 | Sep 28, 2026 04:28:55 | 5 |
| 3 | 189.51.23.131(189-51-23-131.sempre.tec.br) | Jan 06, 2025 16:03:18 | Sep 26, 2026 16:14:01 | 4 |
189.51.23.2 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 189.51.23.2 contacting my website?
This 189.51.23.2 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 189.51.23.2 safe?
It depends on the IP address status. If it is green and marked as "Not in lists", it is considered safe. If it is "Blacklisted" and shown in red, it means the IP has been involved in abusive activity such as spam, phishing, scam attacks, password brute-force attempts, or hacking attempts.
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How do I block 189.51.23.2?
Use one of our Anti-Spam plugins, the Security plugin, the Anti-Spam API, or the Block Lists API. If you are not sure which option to choose, please contact our support team: https://cleantalk.org/my/support/open
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Is this a bot or hacker?
It depends on the activity of the 189.51.23.2. If the Anti-Spam or Security plugins stop the attacks, it is most likely a bot. If they do not stop them, there is a high probability that it is a human attacker.
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What does "Blacklisted" mean?
It means the 189.51.23.2 is currently performing various types of spam and security attacks on websites.
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