172.121.91.159 reported for spam


4 websites attacked, discovered , last activity .
This address has registered spam on several websites and is currently blacklisted.


Status

ServiceStatusUpdatedNext steps
Anti-SpamBlacklistedOct 03, 2026 23:38:46Get Anti-Spam Plugin or API
SpamFireWall BlacklistedOct 03, 2026 23:38:46
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

Abuse reports

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

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Details

Network172.121.88.0/22
Network Spam Rate56%
DNS name-
AS number398781
Org nameOCULUS NETWORKS INC
LocationUnited States
IP Geolocationlat: 37.751; lon: -97.822
Address-
Phone-
Websitegmail.com
AS spam rate53.32%
Websites hosted on 172.121.91.159Data loading

spam attacks, abuse log

#Date/ time (GMT)Sender IPSender EmailNicknameAnti-Spam app
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172.121.88.0/22 spam active IP addresses

#Address (DNS name)DetectedLast seenAttacked sites
1172.121.90.189Apr 10, 2023 02:08:11Oct 04, 2026 13:20:315
2172.121.89.76Dec 30, 2025 20:04:55Oct 04, 2026 12:51:278
3172.121.91.209Nov 30, 2025 19:53:15Oct 04, 2026 12:49:564
4172.121.90.154Jan 02, 2026 18:19:03Oct 04, 2026 12:44:155
5172.121.90.232Jan 01, 2026 19:12:02Oct 04, 2026 12:27:338
6172.121.90.14Mar 26, 2023 15:00:06Oct 04, 2026 12:21:105
7172.121.91.176Dec 29, 2025 19:13:42Oct 04, 2026 12:14:265
8172.121.90.140Dec 29, 2025 07:07:38Oct 04, 2026 12:06:124
9172.121.89.71Dec 28, 2025 16:45:08Oct 04, 2026 12:03:065
10172.121.91.134Dec 30, 2025 01:38:29Oct 04, 2026 11:47:537

CleanTalk API response

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Frequently Asked Questions About 172.121.91.159

  • Why is this 172.121.91.159 contacting my website?

    This 172.121.91.159 may appear due to bots, crawlers, spam submissions, or automated attacks.

  • Is this 172.121.91.159 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 172.121.91.159?

    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 172.121.91.159. 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 172.121.91.159 is currently performing various types of spam and security attacks on websites.

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