54.39.0.201
IP Intelligence Briefing: 54.39.0.201
Threat Assessment: Moderate Risk (Risk Score: 40)
Key Findings:
1. Ownership & Network Role:
- Owned by OVH (ASN 16276), associated with Ahrefs Pte Ltd.
- Classified as a cloud compute infrastructure node with hosting capabilities.
- Subnet: 54.39.0.0/24, which exhibits high abuse density (0.502), indicating a risky network environment.
2. Geolocation Anomalies:
- Geolocated to Beauharnois, Quebec, Canada, but flagged as geoPlausible: false.
- RTT (Round-Trip Time) of 28ms contradicts the 5,629km distance, suggesting potential spoofing, proxy, or misconfigured routing.
3. Threat Indicators:
- No direct malicious activity detected (no blacklists, campaigns, or known attackers).
- Subnet contains 125 threat siblings (high-risk IPs), increasing the likelihood ofๅ ณ่ (association) with malicious behavior.
4. DNS & Hosting:
- Linked to proxy-ca004-san201.ahrefs.net (domain: ahrefs.net).
- No open services or TLS certificates observed, consistent with a firewalled/cloud-hosted node.
5. Observation Trends:
- Recent signals include DNS resolution and subnet analysis, with no persistent threat activity.
- Geo validation violations and high subnet abuse density warrant closer monitoring.
Recommended Actions:
- Monitor the 54.39.0.0/24 subnet for emerging threats, focusing on high-risk neighbors.
- Verify the geolocation discrepancy and investigate potential routing anomalies.
- Validate the DNS hostname (proxy-ca004-san201.ahrefs.net) for legitimate use cases.
- Consider blocking traffic to this IP if it resides in a high-risk subnet or if it correlates with suspicious activity.
Conclusion:
While the IP itself lacks direct threat indicators, its association with a high-abuse subnet and geolocation anomalies necessitates cautious monitoring. SOC teams should prioritize subnet-level analysis and validate the IPโs operational context.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข 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 | โ |
๐ DNS Intelligence
| PTR | proxy-ca004-san201.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca004-san201.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 23% | 1 | 2 |
| geolocation | 34% | 2 | 3 |
| Overall | 21% | 10 | 13 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-24 06:34:15 UTC |
| Last Seen | 2026-06-28 23:53:08 UTC |
| Profile Built | 2026-06-29 05:55:13 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 21 |
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