123.21.13.137 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Not in list | Jul 31, 2026 20:50:45 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Jul 31, 2026 20:50:45 | |
| 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 | 123.21.12.0/22parent network: 123.21.0.0/20 |
|---|---|
| Network Spam Rate | 3% |
| DNS name | - |
| AS number | 45899 |
| Org name | VNPT Corp |
| Location | Ho Chi Minh City, Ho Chi Minh, Vietnam |
| IP Geolocation | lat: 10.822; lon: 106.6257 |
| Address | - |
| Phone | - |
| Website | vnnic.vn |
| AS spam rate | 2.73% |
| Websites hosted on 123.21.13.137 | Data loading |
123.21.12.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 123.21.15.7 | Aug 14, 2026 11:25:09 | Sep 07, 2026 13:32:12 | 5 |
| 2 | 123.21.13.137 | Jul 30, 2026 09:28:52 | Aug 01, 2026 01:50:45 | 3 |
| 3 | 123.21.15.220 | Jul 30, 2026 04:37:06 | Aug 04, 2026 14:02:17 | 3 |
| 4 | 123.21.15.31 | Jul 05, 2026 03:05:57 | Jul 31, 2026 09:20:55 | 3 |
| 5 | 123.21.15.36 | Jul 01, 2026 02:45:11 | Sep 07, 2026 12:15:19 | 3 |
| 6 | 123.21.13.140 | Jun 19, 2026 17:06:52 | Aug 24, 2026 21:32:03 | 3 |
| 7 | 123.21.14.78 | Jun 15, 2026 05:22:11 | Jun 22, 2026 10:26:01 | 3 |
| 8 | 123.21.12.53 | Jun 13, 2026 23:59:19 | Jul 14, 2026 01:30:34 | 4 |
| 9 | 123.21.15.145 | Jun 01, 2026 03:43:38 | Jul 29, 2026 22:35:52 | 3 |
| 10 | 123.21.15.252 | May 31, 2026 02:44:07 | Jun 16, 2026 09:41:03 | 3 |
123.21.13.137 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 123.21.13.137 contacting my website?
This 123.21.13.137 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 123.21.13.137 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 123.21.13.137?
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 123.21.13.137. 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 123.21.13.137 is currently performing various types of spam and security attacks on websites.
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