172.121.91.155 reported for spam


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


Status

ServiceStatusUpdatedNext steps
Anti-SpamBlacklistedOct 03, 2026 15:41:49Get Anti-Spam Plugin or API
SpamFireWall BlacklistedOct 03, 2026 15:41:49
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 rate55.13%
Websites hosted on 172.121.91.155Data 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
1172.121.90.148Dec 30, 2025 08:57:27Oct 05, 2026 01:55:346
2172.121.89.148Jan 03, 2026 00:29:37Oct 05, 2026 01:52:456
3172.121.89.135Jan 08, 2026 02:54:52Oct 05, 2026 00:55:566
4172.121.90.154Jan 02, 2026 18:19:03Oct 05, 2026 00:55:125
5172.121.89.205Dec 29, 2025 02:01:24Oct 05, 2026 00:51:564
6172.121.90.186Jan 06, 2026 06:22:52Oct 05, 2026 00:34:295
7172.121.91.31Dec 31, 2025 23:06:20Oct 05, 2026 00:16:376
8172.121.91.15Jan 02, 2026 07:15:09Oct 05, 2026 00:15:486
9172.121.90.54Dec 29, 2025 08:39:26Oct 04, 2026 23:56:275
10172.121.91.152Dec 30, 2025 20:58:40Oct 04, 2026 23:41:305

CleanTalk API response

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Frequently Asked Questions About 172.121.91.155

  • Why is this 172.121.91.155 contacting my website?

    This 172.121.91.155 may appear due to bots, crawlers, spam submissions, or automated attacks.

  • Is this 172.121.91.155 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 172.121.91.155?

    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 172.121.91.155. 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 172.121.91.155 is currently performing various types of spam and security attacks on websites.

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