154.54.36.166
Intelligence Briefing: 154.54.36.166
The IP address 154.54.36.166 was assessed as Low Risk with a risk score of 25. Ownership records linked the address to Cogent Communications, LLC (ASN 174) within the 154.54.0.0/16 CIDR block. Network analysis confirmed the endpoint was firewalled with no open ports, services, or TLS certificates exposed. DNS resolution returned `be3123.rcr21.lys01.atlas.cogentco.com`, consistent with Cogent infrastructure.
Geolocation data indicated a United States origin, though geo sources disagreed on the country (FR, US). Threat intelligence screening found no blacklists, known attacker indicators, spam activity, or Tor exit node associations. The neighborhood assessment classified the subnet as "mostly_clean" with an abuse density of 0.2, though two threat siblings were present among ten active siblings. Due to signal contradictions, the recommendation was to monitor for changes.
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-154-54-16 |
| CIDR Block | 154.54.0.0/16 |
| RIR | AFRINIC |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | be3123.rcr21.lys01.atlas.cogentco.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | be3123.rcr21.lys01.atlas.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 | 37% | 2 | 6 |
| routing | 27% | 2 | 3 |
| services | 19% | 2 | 2 |
| ownership | 35% | 3 | 5 |
| reputation | 31% | 1 | 6 |
| geolocation | 38% | 2 | 5 |
| Overall | 31% | 12 | 27 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-03 10:47:35 UTC |
| Last Seen | 2026-09-26 03:47:20 UTC |
| Profile Built | 2026-09-26 04:02:27 UTC |
| Data Freshness | Live |
| Signal Types | 30 |
| Total Observations | 46 |
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