54.39.203.54
IP Intelligence Briefing: 54.39.203.54
Date: 2026-06-10
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network: 54.39.203.0/24
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Geo-Plausibility: False (RTT anomalies detected)
- Threat Indicators:
- No malicious indicators, blacklist entries, or campaigns linked.
- DNS: PTR hostname `proxy-ca008-san54.ahrefs.net` (legitimate Ahrefs domain).
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**2. Network Behavior**
- Role: Cloud Hosting (OVH infrastructure).
- Services: No open ports or TLS services detected.
- Control Plane:
- BGP prefix: `54.39.0.0/16`
- RTT Anomalies:
- Observed RTT: 26–29 ms (expected minimum: 112.6 ms for 5629 km distance).
- Indicates potential spoofing, misconfigured routing, or proxy activity.
- Subnet Abuse:
- 54.39.203.54/24 has 45.78% abuse density (mixed classification).
- Neighbor Risk: 65% medium/low risk, 0% high risk.
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**3. Observation History**
- Recent Activity (2026-06-10):
- Geo-verification failed (RTT < minimum possible for distance).
- DNSBL listed on 1 of 8 monitored lists (low severity).
- Historical Trends (2026-06-01):
- Similar RTT anomalies persisted.
- No changes in ownership or threat indicators.
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**4. Relationships**
- Network Associations:
- Linked to OVH-CUST-281059687 (same network).
- DNS:
- Directly associated with `proxy-ca008-san54.ahrefs.net` (Ahrefs domain).
- No Known Campaigns or Malicious Entities.
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**5. Recommendations**
- Monitor RTT Anomalies: Investigate potential spoofing or misconfigured routing.
- Verify DNS Configuration: Ensure `proxy-ca008-san54.ahrefs.net` is legitimate.
- Subnet-Level Monitoring: Track abuse density in `54.39.203.0/24` for emerging risks.
- No Immediate Blocking Required: Low risk, but anomalies warrant closer scrutiny.
SOC Action: Confirm if the IP is part of a legitimate cloud infrastructure or requires isolation.
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-281059687 |
| CIDR Block | 54.39.203.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca008-san54.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca008-san54.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 | 39% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-23 12:24:25 UTC |
| Last Seen | 2026-06-28 21:56:25 UTC |
| Profile Built | 2026-06-29 10:01:32 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 23 |
Full dossier details are available via our API.