31.21.17.121 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Not in list | Jul 02, 2026 13:31:20 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Jul 02, 2026 13:31:20 | |
| 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 | 31.21.16.0/22parent network: 31.20.0.0/15 |
|---|---|
| Network Spam Rate | – |
| DNS name | 121-17-21-31.ftth.glasoperator.nl |
| AS number | 50266 |
| Org name | Odido Netherlands B.V. |
| Location | The Hague, South Holland, The Netherlands |
| IP Geolocation | lat: 52.0368; lon: 4.268 |
| Address | Klipperaak 2d 2411 ND Bodegraven NL |
| Phone | - |
| Website | glasoperator.nl |
| AS spam rate | 2.09% |
| Websites hosted on 31.21.17.121 | Data loading |
31.21.16.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 31.21.17.41(41-17-21-31.ftth.glasoperator.nl) | Sep 06, 2026 23:13:59 | Sep 13, 2026 17:00:50 | 3 |
| 2 | 31.21.16.156(156-16-21-31.ftth.glasoperator.nl) | Jun 27, 2026 17:31:01 | Aug 19, 2026 06:34:12 | 4 |
| 3 | 31.21.18.77(77-18-21-31.ftth.glasoperator.nl) | Jun 17, 2026 12:08:12 | Jul 17, 2026 20:49:38 | 3 |
| 4 | 31.21.17.121(121-17-21-31.ftth.glasoperator.nl) | May 28, 2026 08:57:41 | Jul 02, 2026 18:31:20 | 10 |
| 5 | 31.21.16.90(90-16-21-31.ftth.glasoperator.nl) | Mar 31, 2026 12:31:20 | May 12, 2026 15:30:33 | 7 |
31.21.17.121 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 31.21.17.121 contacting my website?
This 31.21.17.121 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 31.21.17.121 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 31.21.17.121?
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 31.21.17.121. 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 31.21.17.121 is currently performing various types of spam and security attacks on websites.
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