158.173.21.144 is blacklisted, reported for spam, and brute force attacks
1 brute force attacks, last activity .
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Nov 02, 2026 22:21:12 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Nov 02, 2026 22:21:12 | |
| Security FireWall | Not in list | - | Get Security Plugin |
| Block Lists | Data loading | - | Use via API, Files & DNSBL |
| Type of attacks | Spam, BruteForce | ||
Abuse reports
| There are currently no abuse reports for this email/IP. Report Abuse activity |
Details
| Network | 158.173.20.0/22 |
|---|---|
| Network Spam Rate | 12% |
| DNS name | - |
| AS number | 212238 |
| Org name | Datacamp Limited |
| Location | Amsterdam, North Holland, The Netherlands |
| IP Geolocation | lat: 52.3716; lon: 4.8883 |
| | |
| Address | 207 Regent Street W1B 3HH London UNITED KINGDOM |
| Phone | +420777873767 |
| Website | cdn77.com |
| AS spam rate | 11.99% |
| Websites hosted on 158.173.21.144 | Data loading |
Brute Force attacks log
| Date/time (GMT) | IP | Nickname | Event |
|---|---|---|---|
| Oct 02, 2026 15:27:52 | 158.173.21.144 | newmp***** | invalid_username |
158.173.20.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 158.173.21.29 | Oct 26, 2025 16:39:37 | Nov 03, 2026 03:58:42 | 33 |
| 2 | 158.173.21.173 | Oct 04, 2025 01:06:08 | Nov 03, 2026 03:53:31 | 27 |
| 3 | 158.173.21.51 | Oct 21, 2025 23:53:57 | Nov 03, 2026 03:45:54 | 2,964 |
| 4 | 158.173.21.119 | Oct 16, 2025 17:31:32 | Nov 03, 2026 03:34:46 | 1,721 |
| 5 | 158.173.21.144 | Oct 28, 2025 03:59:22 | Nov 03, 2026 03:21:12 | 105 |
| 6 | 158.173.21.132 | Oct 11, 2025 21:34:33 | Nov 03, 2026 02:54:02 | 4,812 |
| 7 | 158.173.21.73 | Oct 04, 2025 01:34:30 | Nov 03, 2026 02:43:37 | 114 |
| 8 | 158.173.21.47 | Dec 03, 2025 13:15:12 | Nov 03, 2026 01:22:35 | 19 |
| 9 | 158.173.21.18 | Mar 03, 2026 07:16:52 | Nov 02, 2026 23:11:17 | 21 |
| 10 | 158.173.21.90 | Nov 13, 2025 05:43:52 | Nov 02, 2026 22:42:31 | 1,173 |
158.173.21.144 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
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Why is this 158.173.21.144 contacting my website?
This 158.173.21.144 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 158.173.21.144 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 158.173.21.144?
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 158.173.21.144. 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 158.173.21.144 is currently performing various types of spam and security attacks on websites.
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