129.121.143.66 is an IP address with 2 abuse reports from 2 distinct reporters, submitted between 10/28/2026 and 10/29/2026. The AbuseTrack community rates it as Medium risk, with a score of 47/100. The most frequently reported threat categories are Brute Force.
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Instant verdict
SUSPICIOUS
47/100
Community risk score
2
Reports
2
Reporters
10/28/2026
First seen
10/29/2026
Last seen
Threat type
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Intelligence
Country
United States (US)
WHOIS (RDAP)
- Country
- United States
- Location
- Ashburn, Virginia
Reverse DNS
- PTR
- 129-121-143-66.unifiedlayer.com
Report history (2)
Brute Force10/29/2026, 04:32 AM · NextServ Group
2026-10-29T05:29:35.970623+01:00 dns sshd-session[4839]: Failed password for root from 129.121.143.66 port 39184 ssh2 2026-10-29T05:31:01.302924+01:00 dns sshd-session[4853]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.121.143.66 user=root 2026-10-29T05:31:02.566621+01:00 dns sshd-session[4853]: Failed password for root from 129.121.143.66 port 53972 ssh2 2026-10-29T05:32:24.330778+01:00 dns sshd-session[4868]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.121.143.66 user=root 2026-10-29T05:32:25.869621+01:00 dns sshd-session[4868]: Failed password for root from 129.121.143.66 port 40302 ssh2
Brute Force10/28/2026, 05:28 PM · michaelortnerit
fail2ban: SSH (sshd) brute-force — 5 failed attempts (jail: sshd)