54.39.0.58
IP Intelligence Briefing: 54.39.0.58
Date: 2026-06-10
---
**1. Core Profile**
- Risk Score: 50 (Moderate Risk)
- Ownership:
- ISP: OVH (ASN 16276)
- Organization: Dmytro, Ahrefs Pte Ltd
- Subnet: 54.39.0.0/24
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Coordinates: Latitude 56.13, Longitude -106.35
- Network Role:
- Type: Cloud Compute (OVH infrastructure)
- Classification: Firewalled / No Services
---
**2. Threat Indicators**
- No direct malicious indicators detected (no blacklists, campaigns, or DNS anomalies).
- Subnet Abuse Density: 49.6% (mixed classification, 123/248 siblings flagged as threats).
- Neighbor Risk: 89/100 neighbors classified as medium/high risk (abuse density 0.496).
---
**3. Observation History**
- Recent Activity:
- Geolocation signal from Canada (2026-06-10).
- Subnet abuse density analysis (2026-06-01).
- Trend: No significant changes in risk profile over 30 days.
---
**4. Relationships & Associations**
- DNS: Linked to `proxy-ca004-san58.ahrefs.net` (Ahrefs Pte Ltd).
- Network: Part of OVH-CUST-281059683 subnet.
- No known campaigns or malicious certificates associated.
---
**5. Actionable Recommendations**
- Block IP:
- Firewall Rules:
```bash
iptables -A INPUT -s 54.39.0.58 -j DROP
nft add rule inet filter input ip saddr 54.39.0.58 drop
```
- Cloud Providers:
- Cloudflare WAF: Block `ip.src eq 54.39.0.58`
- AWS WAF: Add `54.39.0.58/32` to IP set
- Monitor Subnet: High abuse density in 54.39.0.0/24 suggests potential network compromise.
---
**6. Summary**
This IP is part of a cloud compute subnet with moderate risk, no direct malicious activity, but high-risk neighbors (49.6% abuse density) and geolocation inconsistencies. While not a direct threat, its association with a high-risk subnet warrants monitoring and network segmentation. Block the IP to mitigate potential lateral movement risks.
Next Steps:
- Investigate neighboring IPs for shared vulnerabilities.
- Validate DNS associations with Ahrefs Pte Ltd.
- Monitor subnet for unusual traffic patterns.
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-san58.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca004-san58.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 | 15% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 21% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-23 12:24:22 UTC |
| Last Seen | 2026-06-28 21:48:13 UTC |
| Profile Built | 2026-06-29 09:53:23 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 23 |
Full dossier details are available via our API.