Is 172.121.218.66 malicious?
IP reputation report for 172.121.218.66: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
172.121.218.66 is flagged as malicious
Detected by 4 threat intelligence sources in the isMalicious dataset — review before trusting this IP.
Threat verdict
VerdictMalicious
Flagged malicious by the aggregated reputation verdict.
Blocklist detections4 sources
Categoriesproxy, malware
Confidence score90/100
Aggregated confidence across the sources reporting this indicator.
First seen2026-05-25
Last updated2026-05-25
Network & location
LocationSanta Clara, California, United States
ISPGTT Communications Inc.
ASNAS3257 — GTT Communications Inc.
Network172.121.192.0/19
CompanyEGIHosting
InfrastructureDatacenter, Proxy
Security posture
Open ports60000
Detections
- FireHOL - Firehol Anonymousproxy
- FireHOL - Firehol Proxiesproxy
- Bitwire - Inbound Blocklistmalware
- bitwire‑it IP blocklist – bad IPs updated every 2hmalware