172.56.16.20 reported for spam
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Nov 02, 2026 10:30:56 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Nov 02, 2026 10:30:56 | |
| 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 | 172.56.16.0/23 parent network: 172.56.0.0/16 |
|---|---|
| Network Spam Rate | 38% |
| DNS name | - |
| AS number | 21928 |
| Org name | T-Mobile USA, Inc. |
| Location | Chicago, Illinois, United States |
| IP Geolocation | lat: 41.8986; lon: -87.738 |
| | |
| Address | - |
| Phone | - |
| Website | t-mobile.com |
| AS spam rate | 15.56% |
| Websites hosted on 172.56.16.20 | Data loading |
172.56.16.0/23 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 172.56.16.56 | Nov 25, 2015 04:32:55 | Nov 02, 2026 17:07:24 | 11 |
| 2 | 172.56.17.34 | Jan 07, 2016 01:04:59 | Nov 02, 2026 17:02:51 | 16 |
| 3 | 172.56.16.184 | Nov 19, 2014 18:01:11 | Nov 02, 2026 17:01:18 | 10 |
| 4 | 172.56.16.58 | May 14, 2025 22:03:20 | Nov 02, 2026 16:59:45 | 13 |
| 5 | 172.56.17.28 | Sep 26, 2020 06:31:47 | Nov 02, 2026 16:53:31 | 9 |
| 6 | 172.56.17.230 | Jan 02, 2021 10:52:49 | Nov 02, 2026 16:53:31 | 14 |
| 7 | 172.56.16.135 | Jul 06, 2025 02:03:10 | Nov 02, 2026 16:50:21 | 15 |
| 8 | 172.56.16.79 | Sep 16, 2015 23:26:07 | Nov 02, 2026 16:49:12 | 20 |
| 9 | 172.56.17.176 | Mar 13, 2016 23:37:15 | Nov 02, 2026 16:49:12 | 12 |
| 10 | 172.56.17.43 | Mar 12, 2014 21:51:17 | Nov 02, 2026 16:48:07 | 10 |
172.56.16.20 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
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Why is this 172.56.16.20 contacting my website?
This 172.56.16.20 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 172.56.16.20 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 172.56.16.20?
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 172.56.16.20. 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 172.56.16.20 is currently performing various types of spam and security attacks on websites.
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