54.39.203.90
IP Intelligence Briefing: 54.39.203.90
Date: 2026-06-15
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**1. Core Profile**
- Risk Rating: Moderate (Risk Score: 40 / 100)
- Ownership:
- ISP: OVH (ASN: 16276)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network: OVH-CUST-281059687
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Plausibility: Low (RTT discrepancy: 25ms vs. expected 112.6ms for 5,629km)
- Threat Indicators:
- No malicious activity, spam, or known attacker associations detected.
- No DNS blacklists or threat feeds flagged.
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**2. Network Context**
- Subnet: 54.39.203.0/24
- Abuse Density: 53.12% (high_abuse classification)
- Neighbors:
- 256 total IPs in subnet; 183 active.
- 136 IPs flagged as high-risk (41.5% of subnet).
- Notable neighbors: 54.39.203.0–4 (risk scores: 40–25).
- Network Role:
- Cloud Hosting: Part of OVH's infrastructure (OVH-CUST-281059687).
- Services: No open ports; no TLS/HTTP services detected.
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**3. Historical Observations (30-Day Window)**
- Risk Trends: Minimal risk (score: 0.25) consistently.
- Key Signals:
- Stable ownership under OVH.
- No changes in threat indicators or geolocation.
- DNSSEC and CAA records validated.
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**4. Relationships & Dependencies**
- Linked Entities:
- Network: OVH-CUST-281059687 (same subnet).
- DNS: PTR hostname `proxy-ca008-san90.ahrefs.net` (Ahrefs Pte Ltd).
- Certificates: CAA records present; no TLS certificates detected.
- Control Plane:
- BGP: Prefix `54.39.0.0/16` (OVH).
- Routing: Route stability flagged (unstable).
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**5. Actionable Insights**
- Monitor Subnet: High abuse density in 54.39.203.0/24; investigate neighbor risks.
- Geolocation Anomaly: Validate IP location (Beauharnois, Canada) against RTT metrics.
- DNS Verification: Confirm Ahrefs Pte Ltd's ownership of `proxy-ca008-san90.ahrefs.net`.
- Threat Correlation: No direct threats detected, but subnet-wide risks warrant closer scrutiny.
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Conclusion:
The IP is associated with a legitimate cloud hosting provider (OVH) and Ahrefs Pte Ltd. While no direct malicious activity is observed, the subnet's high abuse density and geolocation anomalies suggest potential risks. SOC teams should monitor for changes in subnet behavior and validate the IP's legitimate use case.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059687 |
| CIDR Block | 54.39.203.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca008-san90.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca008-san90.ahrefs.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 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 | 29% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-23 12:24:26 UTC |
| Last Seen | 2026-06-28 21:57:15 UTC |
| Profile Built | 2026-06-29 10:01:32 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 24 |
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