54.39.210.37
IP Intelligence Briefing: 54.39.210.37
Date: 2026-06-14
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**1. IP Profile**
- Risk Score: 50 (Moderate Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network: 54.39.210.0/24
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Coordinates: Latitude 56.13, Longitude -106.35 (approximate)
- Network Role:
- Type: Cloud Hosting (OVH)
- Services: No open ports or TLS certs detected
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**2. Threat Indicators**
- No Direct Threats: No malicious indicators, spam, or known attacker activity.
- Subnet Risk:
- Abuse Density: 56.52% (High Abuse Classification)
- Threat Neighbors: 143 malicious IPs in the 54.39.210.0/24 subnet.
- Historical Observations:
- Stable ownership (no recent changes).
- No persistent malicious activity detected.
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**3. Relationships & Network Context**
- Linked Entities:
- Network: OVH-CUST-281059686 (same subnet).
- DNS: Resolves to `proxy-ca007-san37.ahrefs.net` (Ahrefs).
- Subnet Neighbors:
- Total Siblings: 253 IPs (140 active, 143 flagged as threats).
- Risk Distribution: 94 medium-risk, 5 low-risk IPs.
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**4. Recommended Actions**
- Firewall Rules:
- iptables: `iptables -A INPUT -s 54.39.210.37 -j DROP`
- Cloudflare WAF: Block IP with rule: `ip.src eq 54.39.210.37`
- AWS WAF: Add `54.39.210.37/32` to a new rule.
- Monitoring:
- Track subnet activity due to high abuse density.
- Validate geolocation consistency (plausibility score: 3000km radius).
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**5. Summary**
The IP 54.39.210.37 is associated with a cloud hosting provider (OVH) and resolves to Ahrefs infrastructure. While no direct malicious activity is detected, its subnet (54.39.210.0/24) has a high abuse density, with 143 malicious neighbors. SOC teams should monitor this subnet closely and consider blocking the IP based on the provided firewall rules. No immediate action is required for the IP itself, but contextual awareness of its network is critical.
Product: IPDebrief | Copyright: © 2026 Jason Alberino. All rights reserved.
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-281059686 |
| CIDR Block | 54.39.210.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca007-san37.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca007-san37.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 | 30% | 2 | 3 |
| Overall | 22% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:29 UTC |
| Last Seen | 2026-06-27 08:36:05 UTC |
| Profile Built | 2026-06-28 02:42:01 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 30 |
Full dossier details are available via our API.