104.245.243.21 is blacklisted, reported for spam, and brute force attacks
7 brute force attacks, last activity .
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Oct 07, 2026 11:55:56 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Oct 07, 2026 11:55:56 | |
| Security FireWall | Not in list | - | Get Security Plugin |
| Block Lists | Data loading | - | Sign Up for API, Files, DNSBL & Online Access |
| Type of attacks | Spam, BruteForce | ||
Abuse reports
| There are currently no abuse reports for this email/IP. Report Abuse activity |
Details
| Network | 104.245.240.0/22parent network: 104.245.240.0/21 |
|---|---|
| Network Spam Rate | 13% |
| DNS name | - |
| AS number | 213954 |
| Org name | Global Transit Systems LLC |
| Location | United States |
| IP Geolocation | lat: 37.751; lon: -97.822 |
| Address | - |
| Phone | - |
| Website | globaltransitsystems.online |
| AS spam rate | 15.93% |
| Websites hosted on 104.245.243.21 | Data loading |
Brute Force attacks log
| Date/time (GMT) | IP | Nickname | Event |
|---|---|---|---|
| Oct 02, 2026 10:56:06 | 104.245.243.21 | jus*** | invalid_username |
| Sep 30, 2026 10:25:48 | 104.245.243.21 | crodr***** | invalid_username |
104.245.240.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 104.245.242.147 | Jul 01, 2026 20:25:18 | Oct 07, 2026 18:50:03 | 4 |
| 2 | 104.245.243.251 | Jan 05, 2026 10:59:22 | Oct 07, 2026 18:31:03 | 4 |
| 3 | 104.245.243.91 | Jan 12, 2026 00:31:17 | Oct 07, 2026 18:30:31 | 23 |
| 4 | 104.245.243.206 | Apr 17, 2026 15:08:27 | Oct 07, 2026 18:22:11 | 33 |
| 5 | 104.245.242.116 | Jan 08, 2026 00:06:42 | Oct 07, 2026 17:57:12 | 17 |
| 6 | 104.245.242.208 | Apr 16, 2026 14:47:52 | Oct 07, 2026 17:38:06 | 4 |
| 7 | 104.245.243.23 | Feb 28, 2026 16:48:16 | Oct 07, 2026 17:21:10 | 15 |
| 8 | 104.245.242.210 | Mar 01, 2026 16:40:47 | Oct 07, 2026 17:20:02 | 5 |
| 9 | 104.245.241.129 | Dec 05, 2025 13:20:43 | Oct 07, 2026 17:10:39 | 14 |
| 10 | 104.245.243.21 | Dec 29, 2025 00:48:33 | Oct 07, 2026 16:55:56 | 5 |
104.245.243.21 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
Data loading
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Why is this 104.245.243.21 contacting my website?
This 104.245.243.21 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 104.245.243.21 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 104.245.243.21?
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 104.245.243.21. 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 104.245.243.21 is currently performing various types of spam and security attacks on websites.
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