13.228.74.91📋 Copy

# IP Intelligence Briefing: 13.228.74.91/32

## Executive Summary

IP address 13.228.74.91 resolves to Amazon Web Services cloud infrastructure in Singapore with a risk score of 25/100. The IP operates within the AMAZON-SIN network (13.228.0.0/15, ASN 16509) and presents as a firewalled cloud compute instance with no observable malicious activity.

## Infrastructure Classification

• Organization: Amazon Data Services Singapore (AMAZON-SIN)
• ASN: 16509 (Amazon.com, Inc.)
• Location: Singapore (ap-southeast-1 region)
• Infrastructure Type: Cloud Compute (EC2 instance)
• Network Role: Cloud hosting provider infrastructure
• Service Status: No open ports (firewalled/no services exposed)

## Risk Assessment

• Overall Risk Score: 25/100 (Low Risk)
• Abuse Confidence Score: Not applicable
• Blacklist Count: 0
• Known Campaigns: None
• Threat Feeds: No matches
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No

## DNS Intelligence

• PTR Hostname: ec2-13-228-74-91.ap-southeast-1.compute.amazonaws.com
• Forward Resolution: Confirmed
• Domain: amazonaws.com
• Forward Hostnames: 1 resolved entry
• Email Authentication: SPF and DMARC records present

## Threat Indicators

No threat indicators detected. The IP shows:

• Zero blacklist entries
• No known campaigns or correlated IPs
• No certificate matches for malicious activity
• No banner or signature matches

## Historical Observations

Analysis of 20 signal observations spanning the observation period reveals consistent geolocation data for Singapore with stable infrastructure classification. The most recent observation (2026-06-29) confirms continued low-risk status. The IP demonstrates stable ownership with no changes and minimal threat persistence indicators.

## Neighborhood Analysis

Within the /24 subnet (13.228.74.0/24):

• Abuse Density: 0 (no malicious activity detected)
• Risk Classification: Mostly clean
• High/Medium Risk Neighbors: 0
• Active Siblings: 0
• Threat Siblings: 1 (isolated, not correlated)

## Network Relationships

• DNS Associations: Multiple entries for ec2-13-228-74-91.ap-southeast-1.compute.amazonaws.com
• Network Affiliations: AMAZON-SIN (same network classification)
• Total Relationships: 40+ related entities documented

## Recommended Actions

Based on the low-risk profile and legitimate cloud infrastructure classification:

• Firewall Rules: No blocking required
• Traffic Handling: Permit or standard allow based on organizational policy
• Monitoring: Standard monitoring applies; no enhanced scrutiny needed
• Classification: Mark as "Legitimate Cloud Infrastructure"

## Conclusion

IP 13.228.74.91 is classified as low-risk cloud infrastructure belonging to Amazon Web Services Singapore region. The IP demonstrates no malicious indicators, maintains stable operational characteristics, and operates within a clean subnet environment. No defensive actions are required beyond standard network operations procedures.

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