54.39.0.150
IP Intelligence Briefing: 54.39.0.150
Date: 2026-06-14
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**1. Core Profile**
- Risk Score: Moderate (40/100)
- Provider: OVH (ASN 16276)
- Ownership: Ahrefs Pte Ltd (OVH-CUST-281059683)
- Geolocation: Canada (QC, Beauharnois) — Geoplausibility Flagged (RTT discrepancy for distance).
- Network Role: CloudCompute (OVH-hosted, no residential/mobile traffic).
- Threat Indicators: No malicious activity, no blacklists, no known campaigns.
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**2. Observation History**
- Key Signals:
- Network Classification: Consistent as "CloudCompute" with no recent changes.
- Geolocation: 5629km distance but RTT of 27ms (minimum possible 112.6ms), suggesting spoofing or misconfigured routing.
- DNS: Resolves to `proxy-ca004-san150.ahrefs.net` (ahrefs.net domain).
- DNSSEC: Valid, CAA records present.
- BGP: Stable route, no recent anomalies.
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**3. Relationships**
- Linked Entities:
- Subnet: `54.39.0.0/24` (OVH-owned, high abuse density).
- Hostname: `proxy-ca004-san150.ahrefs.net` (likely a CDN/proxy node).
- No direct links to known malicious organizations or campaigns.
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**4. Neighborhood Analysis**
- Subnet: `54.39.0.0/24` (256 IPs).
- Abuse Density: 62.75% (high risk).
- Neighbor Risk:
- 98 IPs flagged as medium-low risk (40–50 score).
- 2 IPs with high risk (50+ score).
- Inherited Risk: 25% (subnet-level abuse).
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**5. Actionable Insights**
- Monitor Subnet: High abuse density in `54.39.0.0/24` warrants closer scrutiny of traffic patterns.
- Verify Geolocation: Investigate RTT discrepancy for spoofing or misconfigured infrastructure.
- Cloud Security: Ensure Ahrefs' OVH instance is configured with proper network segmentation and access controls.
- DNS Monitoring: Track `proxy-ca004-san150.ahrefs.net` for unexpected DNS changes or subdomain activity.
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Conclusion:
The IP is part of a legitimate cloud infrastructure (OVH, Ahrefs) with no direct malicious indicators. However, the subnet’s high abuse density and geolocation anomalies suggest potential risks. SOC teams should prioritize monitoring network behavior and validating geolocation data for this subnet.
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-281059683 |
| CIDR Block | 54.39.0.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca004-san150.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca004-san150.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 | 26% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 22% | 1 | 2 |
| geolocation | 32% | 2 | 3 |
| Overall | 20% | 10 | 13 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:28 UTC |
| Last Seen | 2026-06-27 07:58:41 UTC |
| Profile Built | 2026-06-28 02:05:32 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 26 |
Full dossier details are available via our API.