Report for IP: 137.220.145.204

Threat LevelHIGH53/1001 rule type
1 incident on record · confirmed on global blocklist · last seen 87d ago · bulletproof hosting
PTR N/A
Org / ASN CTG Server Ltd.
Country 🇯🇵 Japan
City Tokyo, Tokyo
Timezone Asia/Tokyo
Abuse-Tolerant HostingCTG Server Limited (AS152194, Hong Kong)
CTG Server Limited (AS152194) operates VPS infrastructure spanning Hong Kong, Australia, and US address blocks. All observed IPs return NXDOMAIN on PTR lookup, consistent with disposable attack allocations. The multi-continent footprint — with observed /24s in Australia (118.107.44.0/24), United States (137.220.224.0/24), and Hong Kong (103.230.240.0/24) — indicates a provider that deliberately spreads infrastructure across jurisdictions to complicate abuse response and country-based filtering.

Attack Analysis

IDS: Blocklist — Spamhaus DROP
This IP is on the Spamhaus DROP list — a dataset of netblocks hijacked or leased by professional spam and cybercrime operations with no legitimate users. Traffic from DROP-listed ranges is considered hostile by design. Blocking is unconditional.

Reports (1)

Date Severity Description
5 Jul 2026 - 13:05 high IDS: Blocklist — Spamhaus DROP listed IP