47.128.121.85
IP Intelligence Briefing: 47.128.121.85/32
*Generated via IPDebrief Analysis*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership:
- Provider: Amazon Data Services Singapore (ASN 16509)
- Network: Part of AWS infrastructure (AMAZON-SIN)
- Geolocation:
- Country: Singapore (SG)
- Coordinates: 1.35°N, 103.82°E (±150km accuracy)
- Network Role:
- Cloud Compute: AWS EC2 instance (firewalled, no public services)
- Hosting: Yes (likely AWS hosting)
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**2. Threat & Security Context**
- Threat Indicators:
- No malicious indicators (no blacklists, Tor, or spam sources).
- Subnet Risk: High abuse density (0.5085) in 47.128.121.0/24.
- Neighbor Risk: 51/70 IPs in subnet flagged as medium/high risk.
- Historical Observations:
- Stable ownership (no changes in 30 days).
- No persistent malicious activity detected.
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**3. Network Relationships**
- DNS:
- Resolves to `ec2-47-128-121-85.ap-southeast-1.compute.amazonaws.com` (AWS).
- No suspicious domains or email auth issues.
- Subnet:
- Part of AMAZON-SIN (AWS Singapore region).
- High Abuse Density: 51% of subnet IPs flagged as medium/high risk.
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**4. Neighborhood Analysis**
- Subnet: 47.128.121.0/24 (70 total IPs).
- Risk Distribution:
- Medium Risk: 51 IPs (avg. score 40).
- Low Risk: 19 IPs.
- Notable Neighbors:
- Several IPs with similar risk profiles (e.g., 47.128.121.6, 47.128.121.7).
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**5. Actionable Intelligence**
- SOC Recommendations:
- Monitor Subnet: High abuse density in 47.128.121.0/24 warrants closer scrutiny.
- Block High-Risk Neighbors: Consider isolating IPs with elevated risk scores.
- Verify AWS Compliance: Confirm cloud instance behavior aligns with AWS security best practices.
- Firewall Rules:
- Block high-risk neighbors via iptables/nftables to mitigate potential lateral movement.
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Conclusion:
47.128.121.85 is a legitimate AWS cloud instance in Singapore, but its subnet exhibits elevated risk. While the IP itself is not malicious, the surrounding network may harbor threats. SOC teams should prioritize subnet-level monitoring and isolate risky neighbors to reduce exposure.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Singapore |
| ASN | AS16509 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-47-128-121-85.ap-southeast-1.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-47-128-121-85.ap-southeast-1.compute.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ 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 | 36% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-10 22:17:44 UTC |
| Last Seen | 2026-06-27 18:33:45 UTC |
| Profile Built | 2026-06-28 12:39:15 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 27 |
Full dossier details are available via our API.