54.39.0.208
IP Intelligence Briefing: 54.39.0.208
Date: 2026-06-14
---
**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd (OVH-CUST-281059683)
- Geolocation: Canada (QC), Beauharnois (implausible per RTT validation)
- Threat Indicators: No malicious activity detected (no indicators, blacklist entries, or campaigns).
- Network Role: CloudCompute (OVH-hosted infrastructure, no services open).
---
**2. Observation History**
- Recent Activity:
- Detected as a cloud-hosted IP with no active services (June 14, 2026).
- Geo validation flagged as implausible: RTT of 31ms inconsistent with 5,629km distance.
- Subnet abuse density: 0.55 (High Abuse), with 137 malicious siblings in 54.39.0.0/24.
---
**3. Relationships & Network**
- Linked Entities:
- Same network: OVH-CUST-281059683 (54.39.0.0/24).
- DNS: Resolves to `proxy-ca004-san208.ahrefs.net` (no email auth records).
- Subnet Risk:
- Abuse Density: 55% (High Abuse).
- Neighbor Analysis: 131 active IPs in subnet; 137 flagged as malicious.
---
**4. Recommended Actions**
- Firewall Rules:
- iptables: `iptables -A INPUT -s 54.39.0.208 -j DROP`
- Cloudflare WAF: Block IP with rule `{ "action": "block", "filter": { "expression": "ip.src eq 54.39.0.208" } }`
- AWS WAF: Add `54.39.0.208/32` to IP set.
- Monitoring:
- Investigate subnet (54.39.0.0/24) for correlated threats.
- Validate geolocation spoofing (RTT discrepancy suggests potential spoofed location).
---
**5. Summary**
This IP is part of a high-abuse subnet (OVH-hosted) with no direct malicious indicators but elevated risk due to network context. While not currently malicious, its association with a high-abuse subnet warrants monitoring. Apply firewall rules to mitigate potential lateral movement or spoofed activity.
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-san208.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca004-san208.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 | 24% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 21% | 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 23:04:28 UTC |
| Last Seen | 2026-06-27 08:01:52 UTC |
| Profile Built | 2026-06-28 02:07:46 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 26 |
Full dossier details are available via our API.