# IP INTELLIGENCE BRIEFING: 54.155.231.174/32
Classification: Legitimate Cloud Infrastructure (AWS EC2)
Risk Assessment: Moderate Risk Score (40/100) โ Likely False Positive
Date of Report: 2026-07-30
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## Executive Summary
IP address 54.155.231.174 resolves to an Amazon Web Services (AWS) EC2 instance hosted in the eu-west-1 (Dublin, Ireland) region. Despite a moderate risk score of 40, no actual threat indicators, malicious activity, or blacklistings were detected. The IP exhibits characteristics of legitimate cloud infrastructure with no observed abuse patterns.
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## Ownership and Infrastructure Profile
| Attribute | Value |
|---|---|
| **Organization** | Amazon Technologies Inc. |
| **ASN** | 16509 |
| **CIDR Block** | 54.144.0.0/12 |
| **Geolocation** | Dublin, Ireland (IE) |
| **Network Role** | AWS EC2 Instance |
| **DNS Resolution** | ec2-54-155-231-174.eu-west-1.compute.amazonaws.com |
The IP belongs to Amazon's large /12 cloud allocation and resolves to a standard AWS compute hostname. No custom domain or application-level services were detected.
---
## Threat Intelligence Indicators
- Abuse Confidence Score: Not applicable (cloud infrastructure)
- Blacklist Count: 0
- Known Campaigns: None detected
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
The control plane indicates the IP is listed on 2 of 8 DNSBL entries, consistent with cloud provider filtering practices rather than malicious reputation.
---
## Historical Observation Analysis
Sixteen observations recorded since monitoring began, with the most recent signal dated 2026-07-30. Key temporal findings:
- Ownership Stability: No ownership changes detected
- Threat Persistence: 0 days (no persistent malicious activity)
- Signal Consistency: Geolocation signals consistently point to Dublin, Ireland with 867.9 km validation distance
- Risk Trend: No upward trajectory in threat signals
Historical data confirms stable, benign cloud infrastructure behavior with no escalation patterns.
---
## Network Neighborhood Assessment
Subnet analysis for 54.155.231.174/24 reveals:
- Abuse Density: 0% (clean)
- Classification: Clean
- Threat Siblings: 0
- Active Siblings: 0
The /24 subnet contains no adjacent malicious IPs, supporting the conclusion that this is legitimate infrastructure.
---
## Relationship Graph
- DNS Associations: ec2-54-155-231-174.eu-west-1.compute.amazonaws.com (multiple records)
- Network Affiliation: AMAZON
No suspicious associations with external domains, hosts, or organizations.
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## Recommended Security Actions
Despite the moderate risk score, no specific threat-based actions are recommended. The following generic firewall rules may be applied if organizational policy requires blocking all non-verified traffic:
Recommended Firewall Configuration:
- iptables: `iptables -A INPUT -s 54.155.231.174 -j DROP`
- nftables: `nft add rule inet filter input ip saddr 54.155.231.174 drop`
- Cloudflare WAF: Block IP 54.155.231.174
- AWS WAF: Add 54.155.231.174/32 to deny list
Note: These recommendations are probabilistic. Given the IP's identification as legitimate AWS infrastructure, blocking may impact legitimate business communications. Consider whitelisting if this IP is expected for organizational services.
---
## Analyst Conclusion
IP 54.155.231.174 represents standard AWS cloud infrastructure with no evidence of malicious activity. The moderate risk score appears to be a false positive resulting from DNSBL listings common for cloud providers. No immediate defensive action is required unless this IP is not part of expected organizational communications.
Confidence Level: High โ Legitimate AWS EC2 instance, no threat indicators detected.
Recommended Action: No action required; monitor for changes in risk profile.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Amazon Technologies Inc. |
| ASN | AS16509 |
| Network Name | AMAZON |
| CIDR Block | 54.144.0.0/12 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | ec2-54-155-231-174.eu-west-1.compute.amazonaws.com |
| Forward Confirmed | Yes โ FCrDNS verified |
| Forward Hostnames | ec2-54-155-231-174.eu-west-1.compute.amazonaws.com |
๐ DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 โ Basic operator with some routing infrastructure |
๐ Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 42% | 2 | 5 |
| routing | 27% | 2 | 3 |
| services | 19% | 2 | 2 |
| ownership | 32% | 3 | 4 |
| reputation | 28% | 1 | 3 |
| geolocation | 27% | 2 | 3 |
| Overall | 29% | 12 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-07-28 04:03:20 UTC |
| Last Seen | 2026-08-12 22:18:30 UTC |
| Profile Built | 2026-08-12 22:52:33 UTC |
| Data Freshness | Live |
| Signal Types | 26 |
| Total Observations | 31 |
Full dossier details are available via our API.