47.128.121.155
IP Intelligence Briefing: 47.128.121.155
Date: 2026-06-16
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**1. Core Profile**
- Risk Assessment:
- Overall Risk Score: 25 (Low Risk).
- Provider Score: 0 (No malicious provider indicators).
- Authority Score: 0 (No authoritative malicious activity).
- Stability Score: 0 (Unstable or newly observed).
- Ownership:
- ASN: 16509 (Amazon Data Services Singapore).
- Organization: Amazon Web Services (AWS).
- Geolocation: Singapore (1.35°N, 103.82°E), with a 150 km accuracy radius.
- Threat Indicators:
- No malicious indicators, blacklists, or known campaigns linked.
- Not associated with Tor, spam, or attacker infrastructure.
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**2. Observation History**
- Consistency:
- Stable geolocation and ownership data over the past 30 days.
- No significant changes in risk signals.
- Key Observations:
- DNS resolution confirmed for `ec2-47-128-121-155.ap-southeast-1.compute.amazonaws.com`.
- BGP route stability: 0 changes in 30 days, but route stability flag is inactive.
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**3. Network Relationships**
- Associations:
- Linked to AWS subnet `AMAZON-SIN` (AS16509).
- DNS records point to Amazon’s infrastructure.
- Services:
- No open ports or TLS certificates detected.
- HTTP server banner and title not observed.
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**4. Neighborhood Analysis**
- Subnet: 47.128.121.0/24.
- Risk Distribution:
- High Risk: 0 IPs.
- Medium Risk: 66 IPs (40% of subnet).
- Low Risk: 8 IPs (5% of subnet).
- Notable Neighbors:
- IPs like `47.128.121.6`, `47.128.121.7`, and `47.128.121.9` show medium risk (score 40).
- Subnet abuse density: 0% (no malicious activity detected).
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**5. Recommendations**
- Monitoring:
- Track neighbors with medium risk scores for potential lateral movement or network compromise.
- Verify AWS infrastructure legitimacy via AWS console or RDAP.
- Firewall:
- No immediate blocking required for this IP, but consider whitelisting AWS subnets if traffic is critical.
- Investigation:
- Cross-reference with AWS security logs to confirm benign activity.
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End of Briefing
*Generated via IPDebrief intelligence tools. All data sourced from authoritative feeds and historical records.*
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 | AMAZON-SIN |
| CIDR Block | 47.128.0.0/14 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-47-128-121-155.ap-southeast-1.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-47-128-121-155.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 | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| 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 | 17% | 1 | 1 |
| routing | 17% | 1 | 1 |
| services | 17% | 1 | 1 |
| ownership | 35% | 2 | 3 |
| reputation | 17% | 1 | 1 |
| geolocation | 17% | 1 | 1 |
| Overall | 20% | 7 | 8 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-06-13 09:47:07 UTC |
| Last Seen | 2026-06-21 20:46:44 UTC |
| Profile Built | 2026-06-21 20:53:29 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 20 |
Full dossier details are available via our API.