AbuseIPDB » 131.215.21.16

131.215.21.16
Recent Activity This IP has received recent abuse reports, which causes the score to increase.
42 reports found in our database
100% ▲ ▲ ▲ Critical
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ISP
California Institute of Technology
Usage Type
University/College/School
ASN
AS31
Hostname(s)
avrm1533.caltech.edu
Domain Name
caltech.edu
Country
🇺🇸 United States of America
City
Los Angeles, California

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

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IP Abuse Reports for 131.215.21.16:

This IP address has been reported a total of 42 times from 36 distinct sources. 131.215.21.16 was first reported on , and the most recent report was . In the last 60 days, the top reporter locations were: Germany with 10 reports; Italy with 5 reports; France with 4 reports. The most common categories in these recent reports were: Brute-Force 41 times; Email Spam 10 times; Port Scan 3 times; DDoS Attack 1 time; Hacking 1 time; Other 3 times.

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Reporter IoA Timestamp (UTC) Comment Categories
🇩🇪 phil2k
Brute-Force Email Spam DDoS Attack
🇩🇪 Lino Project
Port Scan Brute-Force
🇪🇸 didevi
SPAM or Brute force attack detected
Email Spam Brute-Force
🇮🇩 xveil
Brute-Force
🇮🇹 Progetto1
Mail - Multiple failed login attempts
Brute-Force Exploited Host
Anonymous
BruteForce IMAP/POP3/SMTP
Brute-Force
🇳🇱 big-cloud.nl
Unauthorized SMTP connection attempt
Brute-Force
Anonymous
Brute-Force
🇮🇹 www.tana.it
SMTP auth dictionary attack
Brute-Force
🇮🇹 CoreTech srl
Brute-Force
🇦🇺 electronico
Brute-Force Email Spam
🇳🇱 AutoBlockIP
Suspicious behaviour detected (tcp/465)
Port Scan Hacking Brute-Force
🇬🇧 Aetherweb Ark
Brute-Force
🇮🇩 xveil
Brute-Force
🇩🇪 juutis
Brute-Force

Showing 1 to 15 of 42 reports

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