Is 66.54.140.166 malicious?
IP reputation report for 66.54.140.166: blocklist detections, geolocation, ASN, WHOIS and security posture, aggregated from 100+ threat intelligence sources.
66.54.140.166 is listed on 35 threat intelligence sources
Detected by 35 threat intelligence sources in the isMalicious dataset — review before trusting this IP.
Threat verdict
VerdictListed on blocklists
Appears on threat intelligence blocklists — treat with caution.
Blocklist detections35 sources
Categoriesphishing, suspicious, attack, malware, abuse, attacks, botnet, malicious, c2
Confidence score100/100
Aggregated confidence across the sources reporting this indicator.
Last updated2026-07-14
Network & location
LocationMexico City, Mexico City, Mexico
ISPGTT Americas
ASNAS3257 — GTT Communications Inc.
Network66.54.128.0/17
CompanyGTT Americas, LLC
InfrastructureProxy
Security posture
Open ports22, 443
Detections
- Duggytuxy - Blacklist Ips For Fortinet Firewall Aa.txt
- Romain Marcoux - Malicious IPsphishing
- IPsum Level 2suspicious
- SMTP Greetattack
- IPsum – malicious IP feedmalware
- ThreatHive - Hive Blocklist
- Borestad - AbuseIPDB Blocklist (1d)abuse
- T145 - Black Mirror IPv4 Blocklistmalware
- Data-Shield IPv4 Blocklistmalware
- Bitwire - Inbound Blocklistmalware
- IPsum Level 1suspicious
- FireHOL - Blocklist Deattack
- FireHOL - Blocklist De Imapattack
- FireHOL - Blocklist De Mailattack
- FireHOL - Firehol Level2attack
- Opendbl Net - Blocklistde All.listmalware
- Opendbl Net - Ipsum.listmalware
- Blocklist - All Attacks (48h)attack
- Blocklist - All Mail attacks (48h)attack
- IPsum Level 3suspicious
- Ultimate Hosts Blacklist - Blocklist.demalware
- FireHOL blocklist.de – fail2ban offendersattacks
- Blocklist - All IMAP attacks (1h)attack
- Malware-Filter - Botnet Filter IPsbotnet
+11 more sources in the full report.