140.83.61.66
IP Intelligence Briefing: 140.83.61.66
Date: 2026-06-08
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**1. Core Profile**
- Risk Rating: Low Risk (Risk Score: 25)
- Ownership:
- Organization: Oracle Corporation (ASN: 31898)
- Network: ORACLE-AU (CIDR: 140.83.0.0/16)
- Geolocation: Registered to Australia (AU), but inferred location is Osaka, Japan (latitude: -25.27, longitude: 133.78). Note: Geolocation discrepancy may indicate IP registration mismatch or routing anomalies.
- Network Role: Oracle Cloud infrastructure (firewalled, no services exposed).
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**2. Threat & Behavior**
- Threat Indicators: None detected (no malware, spam, or attack campaigns).
- DNS & Services:
- No open ports, TLS certificates, or HTTP services identified.
- No DNS records or email authentication (SPF/DKIM) linked.
- Control Plane:
- BGP prefix: 140.83.48.0/20 (Oracle-owned).
- Route stability: Unstable (route changes in last 30 days).
- DNSSEC valid; no CAA records.
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**3. Observation History**
- Last 30 Days:
- 16 observations, with the most recent (June 8, 2026) indicating a "multi-signal-inference" geolocation with 2000km accuracy.
- ICMP validation blocked, preventing precise RTT measurement.
- No persistent malicious activity or ownership changes.
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**4. Relationships**
- Linked Entities:
- Network: ORACLE-AU (same ASN, subnet, and organization).
- Geolocation: Inferred as Osaka, Japan, consistent with Oracle’s global cloud infrastructure.
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**5. Neighborhood Analysis**
- Subnet: 140.83.61.66/24
- Neighbor Risk:
- 0 active neighbors; subnet abuse density: 1 (mostly clean).
- No malicious siblings or high-risk IPs in the subnet.
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**6. Recommendations**
- Monitoring: Track geolocation discrepancies and ensure no unexpected service exposure.
- Validation: Investigate ICMP blocking for potential network filtering or evasion techniques.
- Context: Align with Oracle’s cloud infrastructure footprint; no immediate action required.
Conclusion: 140.83.61.66 is a legitimate Oracle Cloud asset with no malicious indicators. Monitor for anomalies in geolocation or network behavior.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Oracle Corporation |
| ASN | AS31898 |
| Network Name | ORACLE-AU |
| CIDR Block | 140.83.0.0/16 |
| RIR | ARIN |
| Country | AU |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Single-Service Host |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
| SSH Version | SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.12 |
🔐 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 | 27% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 26% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-18 15:25:30 UTC |
| Last Seen | 2026-06-28 07:25:01 UTC |
| Profile Built | 2026-06-29 01:30:02 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 21 |
Full dossier details are available via our API.