47.128.121.67📋 Copy

# INTELLIGENCE BRIEFING: 47.128.121.67/32

Classification: Moderate Risk (Score: 40)

Date: 2026-06-21

Analyst: IPDebrief Intelligence

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## EXECUTIVE SUMMARY

IP address 47.128.121.67 is an Amazon Web Services (AWS) cloud compute instance hosted in Singapore (ap-southeast-1). The IP carries a moderate risk score of 40 and is classified as hosting infrastructure. While no active threat indicators were identified, the IP resides within a high-abuse density subnet (0.6125) with 49 of 80 sibling IPs flagged as threats.

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## OWNERSHIP & GELOCATION

• Organization: Amazon Data Services Singapore
• ASN: AS16509 (AMAZON-SIN)
• Network: 47.128.0.0/14
• Location: Singapore (1.35°N, 103.82°E)
• Infrastructure Type: CloudCompute
• DNS Hostname: ec2-47-128-121-67.ap-southeast-1.compute.amazonaws.com
• ISP Provider: Amazon.com, Inc.

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## THREAT PROFILE

Services: No open ports detected. Infrastructure type: CloudCompute/Hosting.

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## NEIGHBORHOOD ANALYSIS (47.128.121.0/24)

The IP resides in a high-abuse density subnet requiring attention:

• Abuse Density: 0.6125 (High)
• Total Siblings: 80
• Active Siblings: 54
• Threat Siblings: 49
• Inherited Risk: 24
• Risk Distribution: 0 High, 79 Medium, 9 Low

Sample High-Risk Neighbors:

• 47.128.121.6 (Risk: 40, Authority: 60)
• 47.128.121.7 (Risk: 40, Authority: 60)
• 47.128.121.9 (Risk: 40, Authority: 60)
• 47.128.121.13 (Risk: 40, Authority: 60)

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## OBSERVATION HISTORY

22 historical observations recorded. Consistent findings across observation periods:

• Subnet consistently classified as "high_abuse"
• ASN AS16509 identified with proxy/VPN characteristics in proxycheck-io signals
• Cloud infrastructure confirmed (AWS EC2)
• Operator score maintained at 0.2609 (Basic)
• No persistent malicious behavior observed

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## RELATIONSHIP GRAPH

• DNS Associations: ec2-47-128-121-67.ap-southeast-1.compute.amazonaws.com
• Network: AMAZON-SIN
• Total Relationships: 33 entities
• Infrastructure Classification: AWS CloudCompute hosting

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## RECOMMENDED ACTIONS

Based on the moderate risk profile and neighborhood context:

Firewall Blocking Rules:

Assessment: While the IP itself shows no active threat indicators, the high-abuse density of its /24 subnet warrants consideration for blocking, particularly if inbound connections are observed. The moderate risk score combined with neighborhood context suggests a defensible block policy.

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END OF BRIEFING

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.