42.1.77.21 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Sep 30, 2026 19:07:55 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Sep 30, 2026 19:07:55 | |
| 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 | 42.1.76.0/22parent network: 42.1.64.0/18 |
|---|---|
| Network Spam Rate | 5% |
| DNS name | - |
| AS number | 131429 |
| Org name | MOBIFONE Corporation |
| Location | Hanoi, Hanoi, Vietnam |
| IP Geolocation | lat: 21.0184; lon: 105.8461 |
| Address | - |
| Phone | - |
| Website | mobifone.vn |
| AS spam rate | 3.2% |
| Websites hosted on 42.1.77.21 | Data loading |
42.1.76.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 42.1.77.73 | May 18, 2024 11:50:36 | Oct 01, 2026 05:50:23 | 7 |
| 2 | 42.1.77.176 | Mar 12, 2024 18:32:39 | Oct 01, 2026 05:43:31 | 11 |
| 3 | 42.1.77.21 | Oct 01, 2025 10:12:49 | Oct 01, 2026 00:07:55 | 4 |
| 4 | 42.1.77.65 | Jul 05, 2025 16:16:58 | Sep 30, 2026 17:01:23 | 6 |
| 5 | 42.1.77.125 | Aug 25, 2025 09:14:02 | Sep 30, 2026 16:11:48 | 7 |
| 6 | 42.1.77.151 | Jul 17, 2025 20:43:38 | Sep 30, 2026 12:31:38 | 9 |
| 7 | 42.1.77.46 | Dec 10, 2025 18:52:21 | Sep 30, 2026 10:33:32 | 11 |
| 8 | 42.1.77.219 | Dec 29, 2025 18:39:39 | Sep 30, 2026 09:14:58 | 5 |
| 9 | 42.1.77.124 | Oct 05, 2023 12:50:48 | Sep 30, 2026 02:07:28 | 4 |
| 10 | 42.1.77.180 | Aug 21, 2025 01:35:38 | Sep 29, 2026 20:57:51 | 4 |
42.1.77.21 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 42.1.77.21 contacting my website?
This 42.1.77.21 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 42.1.77.21 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 42.1.77.21?
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 42.1.77.21. 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 42.1.77.21 is currently performing various types of spam and security attacks on websites.
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