47.128.121.81
IP Intelligence Briefing: 47.128.121.81
Date: 2026-06-10
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**1. Profile Summary**
- Risk Score: Low Risk (0/100)
- Ownership: Owned by Amazon Data Services Singapore (ASN 16509).
- Geolocation: Singapore (SG), coordinates 1.35°N, 103.82°E.
- Network Role: Amazon AWS CloudCompute infrastructure (firewalled, no public services).
- Threat Indicators: No malicious activity detected (no indicators, blacklist entries, or campaigns).
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**2. Observation History**
- Recent Activity (Last 30 Days):
- Stable geolocation and DNS records.
- No spikes in threat signals or network anomalies.
- Consistent AWS-hosted DNS (e.g., `ec2-47-128-121-81.ap-southeast-1.compute.amazonaws.com`).
- Key Metrics:
- Abuse Density: 0.4182 (mixed subnet with 23 threat siblings).
- Route Stability: Unstable BGP prefix (`47.128.0.0/14`).
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**3. Network Relationships**
- DNS Associations:
- Linked to AWS EC2 instances (`ec2-47-128-121-81.ap-southeast-1.compute.amazonaws.com`).
- Valid DNSSEC and SPF/DKIM records.
- Network Connections:
- Part of AMAZON-SIN network (AS16509).
- No suspicious subnets or peer relationships.
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**4. Subnet Neighbors**
- /24 Subnet (47.128.121.0/24):
- 63 total IPs, 24 medium-risk, 39 low-risk.
- Notable neighbors:
- 47.128.121.6 (risk: 40/100), 47.128.121.7 (risk: 40/100), 47.128.121.13 (risk: 50/100).
- Abuse Density: 0 (no confirmed malicious activity in subnet).
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**5. Recommendations**
- Monitoring: Track subnet neighbors for emerging risks (e.g., 47.128.121.13).
- Verification: Confirm AWS infrastructure legitimacy against internal threat lists.
- Firewall: Allow traffic to this IP if it’s a known legitimate AWS resource.
- Logs: Correlate with AWS activity logs for contextual validation.
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Conclusion: 47.128.121.81 is a low-risk AWS CloudCompute IP in Singapore. No immediate threat detected, but monitor subnet neighbors for anomalies.
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 | ec2-47-128-121-81.ap-southeast-1.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-47-128-121-81.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 | 33% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-24 06:33:57 UTC |
| Last Seen | 2026-06-28 23:50:37 UTC |
| Profile Built | 2026-06-29 05:52:58 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 23 |
Full dossier details are available via our API.