121.37.81.18 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Sep 28, 2026 13:51:00 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Sep 28, 2026 13:51:00 | |
| 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 | 121.37.0.0/16 |
|---|---|
| Network Spam Rate | – |
| DNS name | ecs-121-37-81-18.compute.hwclouds-dns.com |
| AS number | 55990 |
| Org name | Huawei Cloud Service data center |
| Location | Beijing, Beijing, China |
| IP Geolocation | lat: 39.911; lon: 116.395 |
| Address | - |
| Phone | - |
| Website | cnnic.cn |
| AS spam rate | 4.26% |
| Websites hosted on 121.37.81.18 | Data loading |
121.37.0.0/16 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 121.37.104.72(ecs-121-37-104-72.compute.hwclouds-dns.com) | Sep 02, 2026 15:47:55 | Sep 29, 2026 01:36:25 | 9 |
| 2 | 121.37.97.69(ecs-121-37-97-69.compute.hwclouds-dns.com) | Sep 03, 2026 11:33:22 | Sep 29, 2026 01:36:10 | 5 |
| 3 | 121.37.110.241(ecs-121-37-110-241.compute.hwclouds-dns.com) | Sep 03, 2026 13:26:13 | Sep 29, 2026 01:14:26 | 10 |
| 4 | 121.37.83.64(ecs-121-37-83-64.compute.hwclouds-dns.com) | Mar 12, 2026 18:39:28 | Sep 29, 2026 00:59:37 | 31 |
| 5 | 121.37.105.127(ecs-121-37-105-127.compute.hwclouds-dns.com) | Dec 26, 2025 01:27:07 | Sep 29, 2026 00:43:32 | 15 |
| 6 | 121.37.96.130(ecs-121-37-96-130.compute.hwclouds-dns.com) | Apr 02, 2026 18:44:11 | Sep 29, 2026 00:28:48 | 19 |
| 7 | 121.37.110.19(ecs-121-37-110-19.compute.hwclouds-dns.com) | Sep 03, 2026 02:32:21 | Sep 29, 2026 00:24:52 | 9 |
| 8 | 121.37.108.34(ecs-121-37-108-34.compute.hwclouds-dns.com) | Apr 21, 2026 00:08:04 | Sep 29, 2026 00:16:25 | 21 |
| 9 | 121.37.80.244(ecs-121-37-80-244.compute.hwclouds-dns.com) | Aug 30, 2025 14:39:36 | Sep 29, 2026 00:16:03 | 12 |
| 10 | 121.37.103.218(ecs-121-37-103-218.compute.hwclouds-dns.com) | Sep 02, 2026 16:27:07 | Sep 29, 2026 00:11:17 | 8 |
121.37.81.18 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 121.37.81.18 contacting my website?
This 121.37.81.18 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 121.37.81.18 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 121.37.81.18?
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 121.37.81.18. 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 121.37.81.18 is currently performing various types of spam and security attacks on websites.
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