54.39.89.212
IP Intelligence Briefing: 54.39.89.212
*Generated via IPDebrief Analysis*
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**1. Core Profile**
- Risk Score: Moderate (40/100)
- Ownership:
- ASN: AS16276
- ISP: OVH SAS
- Organization: Dmytro, Ahrefs Pte Ltd (OVH-CUST-281059691)
- Geolocation: Canada (QC), Beauharnois (GPS: 45.3161, -73.8736)
- Network Role:
- Infrastructure: CloudCompute (OVH)
- Services: No open ports, no TLS certs, no HTTP services detected
- DNS: PTR hostname `proxy-ca012-san212.ahrefs.net` (Ahrefs domain)
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**2. Threat & Risk Indicators**
- Threat Signals:
- No malware indicators, spam, or known attacker associations.
- DNSBL: Listed in 1/8 DNSBLs (low priority).
- Abuse Context:
- Subnet Abuse Density: 53.33% (high risk in 54.39.89.0/24).
- Inherited Risk: 21 (from subnet).
- Neighbor Risk: 91 IPs in subnet scored "medium" risk (40/100).
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**3. Temporal Observations (Last 30 Days)**
- Geolocation Anomaly:
- RTT (21ms) inconsistent with claimed distance (5,629km). Minimum possible RTT for this distance: 112.6ms.
- Possible Spoofing/Proxy: LikelyVPN or misconfigured cloud instance.
- Network Stability:
- BGP Stability: Unstable route (routeChanges30d = 0, but isRouteStable = false).
- DNSSEC: Validated.
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**4. Relationships & Network Context**
- Linked Entities:
- Same network: OVH-CUST-281059691 (ASN16276).
- Subnet: 54.39.89.0/24 (255 IPs, 101 active, 136 flagged as threats).
- Provider: OVH (cloud infrastructure).
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**5. Recommendations for SOC**
1. Monitor Subnet: High abuse density in 54.39.89.0/24; investigate correlated IPs.
2. Verify Geolocation: Discrepancy between claimed location (Canada) and RTT suggests spoofing or proxy use.
3. Check Cloud Config: Confirm Ahrefs' cloud instance is not misconfigured or compromised.
4. Block/Allow Based on Context:
- Allow traffic if part of legitimate Ahrefs infrastructure.
- Flag subnet for further analysis due to high abuse density.
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*End of Briefing*
*Data sourced from IPDebrief intelligence tools (profile, history, relationships, neighbors).*
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-san212.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca012-san212.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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-21 14:58:07 UTC |
| Last Seen | 2026-06-28 14:50:33 UTC |
| Profile Built | 2026-06-29 08:56:23 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 25 |
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