34.245.128.21📋 Copy

# IP Intelligence Briefing: 34.245.128.21/32

## Executive Summary

IP 34.245.128.21 is an Amazon Web Services EC2 instance located in Dublin, Ireland (eu-west-1). The IP demonstrates moderate risk characteristics (score: 50) with no active threat indicators. The infrastructure shows consistent cloud provider attribution and standard AWS DNS resolution patterns.

## Infrastructure Profile

• Provider: Amazon Web Services (AS16509)
• Organization: Amazon Data Services Ireland Limited
• Geolocation: Dublin, Ireland (53.34°N, -6.25°W)
• Network Range: 34.240.0.0/13 (Amazon Dublin)
• CIDR: 34.245.128.21/32
• DNS Hostname: ec2-34-245-128-21.eu-west-1.compute.amazonaws.com

## Risk Assessment

• Overall Risk Score: 50 (Moderate)
• Abuse Confidence Score: Not calculated
• Blacklist Status: Listed on 2 of 8 DNSBLs
• Threat Indicators: None active
• Campaign Attribution: No known campaigns or certificate matches

## Network Behavior

• Services: No open ports detected (Firewalled/No Services)
• Network Classification: Cloud Infrastructure
• Anycast: No
• Proxy/Tor: Negative indicators
• Mobile/Residential: Negative indicators

## Control Plane Observations

• Route Stability: False (route changes observed)
• RPKI State: Valid DNSSEC
• IRR Consistency: Pending validation
• MOAS Status: False
• Delegation Age: Not available

## Historical Analysis

14 observation records captured over the monitoring period. Recent signals confirm:

• Ownership: Amazon Data Services Ireland Limited
• ASN: AS16509 (amazon.com inc)
• Geographic consistency: Dublin, Ireland
• No ownership changes detected
• Threat persistence: 0 days
• Observation count: 0 active threats

## Relationship Graph

• DNS Associations: 2 records pointing to ec2-34-245-128-21.eu-west-1.compute.amazonaws.com
• Organization Links: None detected
• Certificate Links: None detected
• Subnet Associations: None detected

## Neighborhood Analysis

• Subnet: 34.245.128.21/24
• Total Siblings: 0
• Active Siblings: 0
• Abuse Density: 0
• Threat Siblings: 0

The immediate /24 subnet shows no adjacent threat activity, supporting the assessment of isolated infrastructure risk.

## Recommended Security Actions

The following firewall rules are recommended based on the risk profile:

iptables:

```

iptables -A INPUT -s 34.245.128.21 -j DROP

```

nftables:

```

nft add rule inet filter input ip saddr 34.245.128.21 drop

```

Cloudflare WAF:

```json

{

"description": "Block 34.245.128.21 — IPDebrief risk score 50",

"action": "block",

"filter": {"expression": "ip.src eq 34.245.128.21"}

}

```

AWS WAF:

```json

{

"Addresses": ["34.245.128.21/32"],

"Description": "IPDebrief risk 50"

}

```

## Analyst Notes

This IP represents standard AWS cloud infrastructure with a moderate risk score primarily driven by DNSBL listings and route stability concerns. No active threat indicators were observed. The IP is not associated with known attacker campaigns, spam sources, or Tor exit nodes.

SOC Recommendation: Monitor for behavioral changes. The moderate risk score warrants continued observation, particularly given the 2 DNSBL listings. No immediate blocking action is required unless specific traffic patterns emerge. Consider evaluating the IP against organization-specific allow/deny lists based on business context.

*Report generated: 2026-07-31*

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