54.39.89.100
IP Intelligence Briefing: 54.39.89.100
Date: 2026-06-15
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**1. Risk Profile**
- Risk Score: 40 (Moderate Risk)
- Provider: OVH (ASN 16276)
- Organization: Dmytro, Ahrefs Pte Ltd (Hosting/Cloud Compute)
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Anomaly: RTT (31ms) inconsistent with 5,628km distance (minimum expected: 112.6ms).
- Geo Plausibility: False (likely spoofed or proxy).
- Threat Indicators: No malicious indicators, blacklists, or campaigns detected.
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**2. Network & Subnet Analysis**
- Subnet: 54.39.89.0/24
- Abuse Density: 53.54% (High Abuse classification).
- Neighbor Risk:
- Total Siblings: 254 IPs
- Active Siblings: 100
- Threat Siblings: 136 (high-risk IPs in subnet).
- Network Role: Cloud Hosting (OVH infrastructure).
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**3. Historical Observations**
- Latest Signal (2026-06-15):
- RTT Discrepancy: 31ms vs. expected 112.6ms for 5,628km distance.
- Geo Plausibility: False (potential spoofing or proxy).
- Network Classification: High abuse density in subnet.
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**4. Relationships & DNS**
- DNS Associations:
- Hostname: `proxy-ca012-san100.ahrefs.net` (linked to Ahrefs Pte Ltd).
- Network Relationships:
- Same subnet (`54.39.89.0/24`) with 100 active IPs.
- 91% of neighbors classified as medium/low risk, but subnet-wide abuse is high.
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**5. Recommendations**
- Monitor Subnet: High abuse density in 54.39.89.0/24 warrants closer scrutiny for lateral movement or compromised hosts.
- Verify Geolocation: Investigate the RTT anomaly to rule out spoofing or proxy activity.
- Check Hosting Provider: Confirm Ahrefs’ infrastructure is not inadvertently hosting malicious activity.
- Network Segmentation: Consider isolating high-risk subnets to limit potential lateral spread.
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Note: No direct malicious indicators found, but the subnet’s abuse profile and geolocation anomalies justify further investigation.
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-281059691 |
| CIDR Block | 54.39.89.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca012-san100.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca012-san100.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 | |||
| 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 | 30% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 21% | 9 | 13 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-20 05:45:11 UTC |
| Last Seen | 2026-06-28 11:32:03 UTC |
| Profile Built | 2026-06-29 05:35:58 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 22 |
Full dossier details are available via our API.