189.51.23.28 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Sep 20, 2026 05:51:55 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Sep 20, 2026 05:51:55 | |
| Security FireWall | Not in list | - | Get Security Plugin |
| Block Lists | Data loading | - | Sign Up for API, Files, DNSBL & Online Access |
| Type of attacks | Spam | ||
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 | 189-51-23-28.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 | 4.85% |
| Websites hosted on 189.51.23.28 | Data loading |
189.51.23.0/24 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 189.51.23.28(189-51-23-28.sempre.tec.br) | Sep 23, 2025 16:14:31 | Sep 20, 2026 10:51:55 | 5 |
189.51.23.28 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 189.51.23.28 contacting my website?
This 189.51.23.28 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 189.51.23.28 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 189.51.23.28?
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 189.51.23.28. 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 189.51.23.28 is currently performing various types of spam and security attacks on websites.
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