## IP Intelligence Briefing: 54.39.210.167
Classification: Moderate Risk | Provider: OVH (ASN 16276) | Country: Canada (QC)
---
Executive Summary
IP 54.39.210.167 is an OVH cloud hosting address with a risk score of 40/100 (Moderate Risk). The IP is associated with ahrefs.net (SEO analytics platform proxy), but resides within a subnet exhibiting high abuse density. No direct threat indicators, blacklisting, or active campaigns detected.
Network Ownership & Infrastructure
- Organization: Dmytro, Ahrefs Pte Ltd
- Network Block: 54.39.210.0/24 (OVH-CUST-281059686)
- ASN: 16276 (OVH, allocated 2001-02-15)
- Infrastructure Type: CloudCompute / Hosting
- Network Role: Firewalled / No Services Detected
- DNS Resolution: proxy-ca007-san167.ahrefs.net
Risk Assessment
- Risk Score: 40/100 (Moderate)
- Abuse Confidence: Not directly attributed to this IP
- Blacklist Status: Clean (0 blacklists)
- Threat Indicators: None identified
- Campaign Attribution: No known campaigns
Neighborhood Analysis (54.39.210.0/24)
- Abuse Density: 0.668 (High Abuse Classification)
- Threat Siblings: 171 of 256 active IPs flagged
- Inherited Risk: 26/100 from subnet context
- Implication: Subnet-level contamination pattern; individual IP requires contextual blocking consideration
Historical Observations
- Routing Stability: Stable (54.39.0.0/16, no changes in 30 days)
- ASN Consistency: ASN 16276 consistently observed since 2001
- Threat Persistence: 0 days (not persistently malicious)
- Threat Observation Count: 1 historical signal
Technical Details
- Geolocation: Beauharnois, QC (geolocation implausible per RTT validation)
- DNSSEC: Valid
- TLS/Certificates: None detected
- Open Ports: None detected
- RTT Validation: 28ms observed vs 112.6ms minimum for 5629km distance (geolocation anomaly)
Recommended Actions
No specific recommendations issued due to lack of direct threat attribution. However, subnet-level abuse density suggests defensive blocking may be warranted.
Firewall Rules (if subnet blocking required):
```bash
iptables -A INPUT -s 54.39.210.0/24 -j DROP
nft add rule inet filter input ip saddr 54.39.210.0/24 drop
```
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Analyst Notes
This IP requires context-aware evaluation:
1. Subnet Contamination: The /24 subnet shows 66.8% abuse density with 171 threat siblings
2. Legitimate Use Case: DNS resolves to ahrefs.net (legitimate SEO analytics platform)
3. No Direct Malicious Signals: IP itself has no threat indicators or blacklisting
4. Decision Framework: Evaluate based on organizational threat tolerance for cloud hosting subnets with high abuse density
Recommendation: Monitor rather than block. Consider subnet-level rules only if broader abuse patterns affect operations.
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-281059686 |
| CIDR Block | 54.39.210.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca007-san167.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca007-san167.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 | Tier 3 โ Basic operator with some routing infrastructure |
๐ Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| 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 | 33% | 2 | 3 |
| routing | 33% | 2 | 3 |
| services | 8% | 1 | 1 |
| ownership | 35% | 3 | 4 |
| reputation | 31% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 28% | 11 | 17 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-19 21:40:51 UTC |
| Last Seen | 2026-06-28 10:23:17 UTC |
| Profile Built | 2026-06-29 04:28:15 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 27 |
Full dossier details are available via our API.