18.145.219.81📋 Copy

# IP INTELLIGENCE BRIEFING: 18.145.219.81/32

Date: 2026-08-05

Classification: Low Risk / Infrastructure

Status: Clean / No Threat Indicators

---

## EXECUTIVE SUMMARY

IP address 18.145.219.81 is a low-risk AWS cloud infrastructure endpoint with no observed malicious activity. The IP is associated with Amazon Web Services (AS16509) in the San Jose, California data center and resolves to a standard EC2 instance hostname. No open services, threats, or abuse indicators were detected across all analysis vectors.

---

## OWNERSHIP & INFRASTRUCTURE

The IP belongs to Amazon's US West (Oregon) region infrastructure. DNS reverse resolution confirms it is a cloud-hosted EC2 instance with forward DNS validation confirmed.

---

## THREAT ASSESSMENT

Threat Indicators: None detected. No associated campaigns, threat feeds, or known malicious activity.

---

## NETWORK BEHAVIOR

• Open Ports: None detected
• Services: Firewall / No Services exposed
• TLS Certificates: Not applicable
• Network Role: Cloud infrastructure endpoint
• DNSSEC: Valid
• Control Plane: BGP prefix 18.144.0.0/15, route stable

---

## NEIGHBORHOOD ANALYSIS

Subnet: 18.145.219.0.0/24

• Abuse Density: 0 (Clean)
• Threat Siblings: 0
• Active Siblings: 1
• Risk Distribution: All clean (high: 0, medium: 0, low: 0)

The /24 subnet shows no malicious neighbors, confirming this is part of normal AWS infrastructure.

---

## OBSERVATION HISTORY

Total Observations: 22 signals over analysis period

Recent Activity:

• 2026-08-05: Subnet classified as "clean" with 0 abuse density
• 2026-08-05: No certificate matches or campaign indicators
• 2026-07-30: Port scan observed (no open services)

Temporal Analysis: No ownership changes detected. No persistent malicious behavior observed.

---

## RELATIONSHIP MAPPING

The IP exhibits only DNS and network associations:

• Primary association: ec2-18-145-219-81.us-west-1.compute.amazonaws.com
• Network associations: AMAZON-SFO (multiple references)

No external threat actor relationships or certificate correlations detected.

---

## RECOMMENDATIONS

Action Required: None

Rationale: This IP represents standard AWS cloud infrastructure with no malicious indicators. No firewall rules or blocking recommendations are warranted. The IP should be treated as benign infrastructure.

Monitoring: No additional monitoring required beyond standard traffic analysis.

---

END OF BRIEFING

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