168.181.51.121 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Not in list | Sep 18, 2026 22:44:58 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Sep 18, 2026 22:44:58 | |
| 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 | 168.181.50.0/23 |
|---|---|
| Network Spam Rate | 4% |
| DNS name | 121.51.181.168.rfc6598.dynamic.copelfibra.com.br |
| AS number | 14868 |
| Org name | Ligga Telecomunicacoes S.A. |
| Location | Curitiba, Paraná, Brazil |
| IP Geolocation | lat: -25.5026; lon: -49.2908 |
| Address | - |
| Phone | - |
| Website | copel.com |
| AS spam rate | 3.11% |
| Websites hosted on 168.181.51.121 | Data loading |
168.181.50.0/23 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 168.181.51.141(141.51.181.168.rfc6598.dynamic.copelfibra.com.br) | Apr 14, 2017 01:46:01 | Sep 20, 2026 21:07:48 | 4 |
168.181.51.121 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 168.181.51.121 contacting my website?
This 168.181.51.121 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 168.181.51.121 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 168.181.51.121?
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 168.181.51.121. 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 168.181.51.121 is currently performing various types of spam and security attacks on websites.
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