154.18.20.26
The IP address 154.18.20.26 was observed between September 9 and September 22, 2026. Ownership records identified the address under Cogent Communications, LLC (ASN 174) within the 154.18.0.0/16 block, geolocated to Seoul, South Korea. Risk assessment assigned a score of 25, categorizing the reputation as Low Risk. Network scanning detected no open ports, classifying the service purpose as Firewalled with no services. Threat indicators returned empty results with zero blacklist counts and no known campaign associations. Behavioral logs showed no incidents, honeypot hits, or enumeration strikes. The neighborhood classification remained clean with zero abuse density. Although the threat actor label was Suspicious Host, intent could not be classified due to insufficient data. The recommended action was to Monitor the asset at low severity.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Cogent Communications, LLC |
| ASN | AS174 |
| Network Name | COGENT-154-18-16 |
| CIDR Block | 154.18.0.0/16 |
| RIR | AFRINIC |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | dreamline.demarc.cogentco.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | dreamline.demarc.cogentco.com |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 35% | 2 | 3 |
| Overall | 24% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-09 17:04:18 UTC |
| Last Seen | 2026-09-22 20:00:26 UTC |
| Profile Built | 2026-09-22 20:09:45 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 30 |
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