166.0.136.21 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Oct 06, 2026 00:49:40 | Get Anti-Spam Plugin or API |
| SpamFireWall | Blacklisted | Oct 06, 2026 00:49:40 | |
| 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 | 166.0.136.0/24parent network: 166.0.136.0/22 |
|---|---|
| Network Spam Rate | 55% |
| DNS name | 166-0-136-21.ips.acedatacenter.com |
| AS number | 11798 |
| Org name | Ace Data Centers, Inc. |
| Location | United States |
| IP Geolocation | lat: 37.751; lon: -97.822 |
| Address | - |
| Phone | - |
| Website | acedatacenter.com |
| AS spam rate | 27.74% |
| Websites hosted on 166.0.136.21 | Data loading |
166.0.136.0/24 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 166.0.136.138(166-0-136-138.ips.acedatacenter.com) | Nov 29, 2025 01:31:53 | Oct 06, 2026 06:28:04 | 6 |
| 2 | 166.0.136.41(166-0-136-41.ips.acedatacenter.com) | Sep 10, 2025 01:14:09 | Oct 06, 2026 06:25:59 | 6 |
| 3 | 166.0.136.192(166-0-136-192.ips.acedatacenter.com) | Nov 01, 2025 02:53:53 | Oct 06, 2026 06:17:54 | 5 |
| 4 | 166.0.136.123(166-0-136-123.ips.acedatacenter.com) | Oct 21, 2025 04:06:09 | Oct 06, 2026 06:16:21 | 5 |
| 5 | 166.0.136.200(166-0-136-200.ips.acedatacenter.com) | Oct 25, 2025 05:55:18 | Oct 06, 2026 06:09:49 | 6 |
| 6 | 166.0.136.59(166-0-136-59.ips.acedatacenter.com) | Aug 22, 2025 06:08:41 | Oct 06, 2026 06:09:22 | 6 |
| 7 | 166.0.136.111(166-0-136-111.ips.acedatacenter.com) | Nov 07, 2025 13:45:29 | Oct 06, 2026 06:05:57 | 4 |
| 8 | 166.0.136.21(166-0-136-21.ips.acedatacenter.com) | Aug 25, 2025 00:46:58 | Oct 06, 2026 05:49:40 | 5 |
| 9 | 166.0.136.38(166-0-136-38.ips.acedatacenter.com) | Oct 29, 2025 06:29:22 | Oct 06, 2026 02:51:22 | 4 |
| 10 | 166.0.136.13(166-0-136-13.ips.acedatacenter.com) | Aug 17, 2025 21:53:04 | Oct 06, 2026 02:47:08 | 5 |
166.0.136.21 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 166.0.136.21 contacting my website?
This 166.0.136.21 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 166.0.136.21 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 166.0.136.21?
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 166.0.136.21. 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 166.0.136.21 is currently performing various types of spam and security attacks on websites.
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