47.128.121.90
IP Intelligence Briefing: 47.128.121.90
*Generated via IPDebrief Analysis*
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**Core Profile**
- Provider: Amazon Data Services Singapore (ASN 16509)
- Geolocation: Singapore (1.35°N, 103.82°E)
- Risk Score: Moderate (40/100)
- Network Role: Amazon Web Services infrastructure (firewalled, no services detected)
- Threat Indicators: No direct malicious activity detected; no known spam, attacker, or Tor associations.
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**Observation History**
- Latest Activity: June 16, 2026 (confidence: 60%)
- Trend: Stable risk profile with no significant changes over 30 days.
- Key Signals:
- Subnet abuse density: 55% (high risk).
- DNS resolution confirmed for Amazon EC2 instance (`ec2-47-128-121-90.ap-southeast-1.compute.amazonaws.com`).
- BGP route stability: 0 changes in 30 days.
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**Network Relationships**
- Linked Entities:
- Amazon AWS: Same ASN (16509) and subnet (`AMAZON-SIN`).
- DNS: Resolves to Amazon EC2 hostname.
- Subnet: Part of `47.128.121.90/24` with 55% abuse density.
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**Subnet Neighborhood**
- Total IPs: 74 in `47.128.121.90/24`
- Risk Distribution:
- 59 IPs: Medium risk (40β60)
- 14 IPs: Low risk
- 1 IP: Same as target (47.128.121.90)
- Abuse Density: 55% (high risk subnet).
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**Actionable Insights**
1. Subnet Risk: The IP resides in a subnet with high abuse density. Monitor for lateral movement or compromised hosts.
2. Provider Context: Amazon AWS infrastructure is likely legitimate, but subnet-level risks suggest potential misconfigurations or compromised cloud instances.
3. DNS Monitoring: Track DNS queries to `ec2-47-128-121-90.ap-southeast-1.compute.amazonaws.com` for anomalies.
4. Neighbor Analysis: Investigate neighboring IPs with medium risk scores for potentialε ³θ (associations) or shared vulnerabilities.
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Recommendation: Apply network segmentation to isolate high-risk subnets and monitor traffic patterns. Verify if the IP is part of any active campaigns or compromised cloud environments.
*Generated by IPDebrief | © 2026 Jason Alberino*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Amazon Data Services Singapore |
| ASN | AS16509 |
| Network Name | AMAZON-SIN |
| CIDR Block | 47.128.0.0/14 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | ec2-47-128-121-90.ap-southeast-1.compute.amazonaws.com |
| Forward Confirmed | Yes β FCrDNS verified |
| Forward Hostnames | ec2-47-128-121-90.ap-southeast-1.compute.amazonaws.com |
π DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 β Basic operator with some routing infrastructure |
π 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 | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 32% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 21% | 2 | 2 |
| ownership | 30% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 13% | 1 | 1 |
| Overall | 23% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-06-06 19:46:25 UTC |
| Last Seen | 2026-06-21 13:26:40 UTC |
| Profile Built | 2026-06-21 13:37:48 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 25 |
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