## IP Intelligence Briefing: 3.120.250.78/32
Date: August 5, 2026
Classification: LOW RISK โ Cloud Infrastructure
---
Executive Summary
IP address 3.120.250.78 is a benign Amazon Web Services EC2 instance located in Frankfurt, Germany. The address exhibits no malicious indicators, threat activity, or anomalous behavior. Recommended action: No blocking or filtering required.
---
Ownership and Network Context
| Attribute | Value |
|---|---|
| **Organization** | A100 ROW GmbH |
| **Network Name** | AMAZO-ZFRA |
| **ASN** | 16509 (Amazon.com, Inc.) |
| **CIDR Block** | 3.120.0.0/14 |
| **RIR** | ARIN |
| **Location** | Frankfurt, Germany (EU-Central-1) |
The IP belongs to Amazon Web Services infrastructure, specifically the AMAZO-ZFRA network block. This is confirmed by DNS PTR resolution to `ec2-3-120-250-78.eu-central-1.compute.amazonaws.com`.
---
Risk Assessment
| Metric | Value | Assessment |
|---|---|---|
| **Risk Score** | 0 | Clean |
| **Abuse Confidence** | None | No abuse indicators |
| **Blacklist Count** | 0 | Not listed |
| **Threat Indicators** | None | No threats detected |
| **Known Campaigns** | None | No campaign associations |
Threat Indicators:
- Not a Tor exit node
- Not a known attacker IP
- Not a spam source
- No malicious reputation sources
- Zero blacklist listings
---
Network Activity and Services
| Service Type | Status |
|---|---|
| **Open Ports** | None detected |
| **HTTP/HTTPS** | No active web services |
| **DNS Resolution** | Forward-confirmed to AWS hostname |
| **Email Auth** | SPF/DMARC configured (domain: amazonaws.com) |
| **TLS/Certificates** | None detected |
| **Network Role** | Firewalled / No Services |
The IP is classified as firewalled with no active services exposed. This is typical for backend EC2 instances that are not directly accessible from the internet.
---
Neighborhood Analysis
| Metric | Value |
|---|---|
| **Subnet** | 3.120.250.78/24 |
| **Abuse Density** | 0.0 |
| **Classification** | Clean |
| **Threat Siblings** | 0 |
| **Active Siblings** | 0 |
The /24 subnet shows zero abuse density with no neighboring threat IPs. This indicates the IP is operating within a clean cloud infrastructure environment.
---
Relationship Graph
The IP has established relationships exclusively with:
- DNS Hostnames: `ec2-3-120-250-78.eu-central-1.compute.amazonaws.com`
- Network: AMAZO-ZFRA (same network)
No relationships to external organizations, suspicious hostnames, or malicious entities were identified.
---
Historical Observation
- Total Observations: 21 signals
- Observation Period: Recent monitoring from July 30 through August 5, 2026
- Trend: Stable low-risk profile with no degradation or escalation
- Recent Scans: Multiple scans conducted showing consistent "firewalled/no services" status
- Threat Persistence: None observed
---
Control Plane and Routing
| Attribute | Value |
|---|---|
| **Route Stability** | Stable |
| **BGP Prefix** | 3.120.0.0/14 |
| **DNSSEC** | Valid |
| **RPKI State** | Valid |
| **Hops to Origin** | 30 |
| **RTT** | 0.1ms (first hop), 88.2ms (last hop) |
---
Recommended Actions
No action required. This IP represents standard AWS cloud infrastructure with no malicious indicators.
For SOC/Security Teams:
- No firewall rules needed
- No blocking recommended
- No further investigation warranted
- Consider as trusted infrastructure if AWS is in scope
---
Conclusion
3.120.250.78/32 is a clean, unremarkable AWS EC2 instance in Frankfurt. All threat intelligence checks return negative results. The IP exhibits no behavior consistent with malicious activity and is associated only with legitimate Amazon infrastructure.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | A100 ROW GmbH |
| ASN | AS16509 |
| Network Name | AMAZO-ZFRA |
| CIDR Block | 3.120.0.0/14 |
| RIR | ARIN |
| Country | Germany |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | ec2-3-120-250-78.eu-central-1.compute.amazonaws.com |
| Forward Confirmed | Yes โ FCrDNS verified |
| Forward Hostnames | ec2-3-120-250-78.eu-central-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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 30% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 13% | 1 | 1 |
| Overall | 22% | 9 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-07-26 09:12:27 UTC |
| Last Seen | 2026-08-12 20:24:33 UTC |
| Profile Built | 2026-08-12 20:52:17 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 30 |
Full dossier details are available via our API.