172.121.211.129 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Oct 01, 2026 12:58:15 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Oct 01, 2026 12:58:15 | |
| 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 | 172.121.208.0/22 |
|---|---|
| Network Spam Rate | 32% |
| DNS name | - |
| AS number | 3257 |
| Org name | GTT Communications Inc. |
| Location | Santa Clara, California, United States |
| IP Geolocation | lat: 37.3931; lon: -121.962 |
| Address | Tinet International Network SpA TINET Accounts Payable Localita Sa Illetta, SS 195, KM 2,300 09122 Cagliari ITALY |
| Phone | +49610282353 |
| Website | gtt.net |
| AS spam rate | 11.53% |
| Websites hosted on 172.121.211.129 | Data loading |
172.121.208.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 172.121.211.255 | Aug 20, 2025 22:10:40 | Oct 02, 2026 03:04:14 | 6 |
| 2 | 172.121.211.243 | Oct 23, 2024 13:00:41 | Oct 02, 2026 02:37:35 | 4 |
| 3 | 172.121.211.76 | Oct 23, 2024 05:35:20 | Oct 02, 2026 01:38:39 | 4 |
| 4 | 172.121.211.212 | Sep 17, 2025 08:15:35 | Oct 02, 2026 01:37:54 | 6 |
| 5 | 172.121.211.50 | Jul 31, 2025 12:09:13 | Oct 02, 2026 01:21:43 | 10 |
| 6 | 172.121.211.94 | Aug 15, 2025 08:05:31 | Oct 02, 2026 01:12:52 | 5 |
| 7 | 172.121.211.167 | Jun 29, 2025 14:51:29 | Oct 02, 2026 00:38:37 | 6 |
| 8 | 172.121.211.146 | Oct 19, 2025 07:53:34 | Oct 02, 2026 00:20:03 | 4 |
| 9 | 172.121.211.204 | Jul 01, 2025 10:11:37 | Oct 02, 2026 00:04:05 | 6 |
| 10 | 172.121.211.162 | Oct 13, 2024 05:30:31 | Oct 02, 2026 00:02:49 | 4 |
172.121.211.129 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 172.121.211.129 contacting my website?
This 172.121.211.129 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 172.121.211.129 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 172.121.211.129?
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 172.121.211.129. 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 172.121.211.129 is currently performing various types of spam and security attacks on websites.
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