75.21.252.6 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Not in list | Oct 19, 2026 22:44:54 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Oct 19, 2026 22:44:54 | |
| Security FireWall | Not in list | - | Get Security Plugin |
| Block Lists | Data loading | - | Use via API, Files & DNSBL |
| Type of attacks | Spam | ||
Abuse reports
| There are currently no abuse reports for this email/IP. Report Abuse activity |
Details
| Network | 75.21.252.0/22 parent network: 75.0.0.0/11 |
|---|---|
| Network Spam Rate | – |
| DNS name | 75-21-252-6.lightspeed.rcsntx.sbcglobal.net |
| AS number | 7018 |
| Org name | AT&T Enterprises, LLC |
| Location | Fort Worth, Texas, United States |
| IP Geolocation | lat: 32.8619; lon: -97.3427 |
| | |
| Address | - |
| Phone | - |
| Website | att.com |
| AS spam rate | 2.27% |
| Websites hosted on 75.21.252.6 | Data loading |
75.21.252.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 75.21.254.223 (75-21-254-223.lightspeed.rcsntx.sbcglobal.net) | Apr 21, 2026 03:52:09 | May 28, 2026 09:30:30 | 4 |
| 2 | 75.21.255.218 (75-21-255-218.lightspeed.rcsntx.sbcglobal.net) | Apr 05, 2026 11:58:12 | May 08, 2026 11:03:01 | 3 |
| 3 | 75.21.252.6 (75-21-252-6.lightspeed.rcsntx.sbcglobal.net) | Jan 18, 2026 12:49:05 | Oct 20, 2026 03:44:54 | 3 |
75.21.252.6 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
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Why is this 75.21.252.6 contacting my website?
This 75.21.252.6 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 75.21.252.6 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 75.21.252.6?
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 75.21.252.6. 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 75.21.252.6 is currently performing various types of spam and security attacks on websites.
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