20.3.221.176 is blacklisted, reported for spam, and brute force attacks


41 websites attacked, discovered , last activity .
2 brute force attacks, last activity .
This address has registered spam on several websites and is currently blacklisted.


Status

ServiceStatusUpdatedNext steps
Anti-SpamBlacklistedJul 06, 2026 17:03:58Get Anti-Spam Plugin or API
SpamFireWall BlacklistedJul 06, 2026 17:03:58
Security FireWall  Not in list-Get Security Plugin
Block Lists 
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-Sign Up for API, Files, DNSBL & Online Access
Type of attacksSpam, BruteForce

Abuse reports

There are currently no abuse reports for this email/IP.

Report Abuse activity

Details

Network20.3.220.0/22parent network: 20.0.0.0/13
Network Spam Rate
DNS name-
AS number8075
Org nameMicrosoft Corporation
LocationWashington, United States
IP Geolocationlat: 47.6109; lon: -122.3303
Address-
Phone-
Websitemicrosoft.com
AS spam rate0.64%
Websites hosted on 20.3.221.176Data loading

spam attacks, abuse log

#Date/ time (GMT)Sender IPSender EmailNicknameAnti-Spam app
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Brute Force attacks log

Date/time (GMT)IPNicknameEvent
Jul 06, 2026 22:16:3720.3.221.176 ad**invalid_username
Jul 06, 2026 20:19:0620.3.221.176 ad**invalid_username

20.3.220.0/22 spam active IP addresses

#Address (DNS name)DetectedLast seenAttacked sites
120.3.221.176Jul 06, 2026 13:17:26Jul 06, 2026 17:03:580

CleanTalk API response

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Learn more

Frequently Asked Questions About 20.3.221.176

  • Why is this 20.3.221.176 contacting my website?

    This 20.3.221.176 may appear due to bots, crawlers, spam submissions, or automated attacks.

  • Is this 20.3.221.176 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.

  • How do I block 20.3.221.176?

    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

  • Is this a bot or hacker?

    It depends on the activity of the 20.3.221.176. 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.

  • What does "Blacklisted" mean?

    It means the 20.3.221.176 is currently performing various types of spam and security attacks on websites.

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