3.81.250.64
# IP Intelligence Briefing: 3.81.250.64/32
Classification: LOW RISK | Risk Score: 25/100 | Date: August 2026
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## Executive Summary
IP address 3.81.250.64 is a low-risk infrastructure endpoint operated by Amazon Web Services (AWS) in the Northern Virginia region. The IP belongs to the AMAZON-IAD network within the 3.80.0.0/12 CIDR block. Current intelligence indicates minimal threat activity, with no persistent malicious behavior observed and a "mostly clean" subnet classification.
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## Network Ownership & Infrastructure
- Organization: Amazon Data Services Northern Virginia
- ASN: 14618 (AMAZON-AES)
- Network Name: AMAZON-IAD
- CIDR Block: 3.80.0.0/12
- Geolocation: Ashburn, Virginia (US)
- Infrastructure Type: Cloud Compute (AWS EC2)
- PTR Hostname: ec2-3-81-250-64.compute-1.amazonaws.com
- DNS Resolution: Forward confirmed
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## Threat Assessment
Current Risk Status: Low Risk
Threat Indicators:
- Blacklist count: 0
- No known attacker designation
- No Tor exit node activity
- No spam source classification
- Abuse confidence score: Not applicable
Network Classification:
- Provider: Amazon Web Services
- Infrastructure: Cloud compute environment
- Connection Type: Firewalled / No services exposed
- No open ports detected on the endpoint
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## Neighborhood Analysis
Subnet: 3.81.250.64/24
| Metric | Value |
|---|---|
| Abuse Density | 0 |
| Classification | Mostly Clean |
| Total Siblings | 1 |
| Active Siblings | 1 |
| Threat Siblings | 1 |
The subnet exhibits minimal abuse activity with a "mostly clean" classification.
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## Historical Observations
Analysis of 24 historical observations reveals:
- Ownership Changes: 0
- Threat Persistence Days: 0
- Persistent Malicious Activity: No
- Threat Observation Count: 1
Recent observations (August 2026) consistently classify the IP and its subnet as "mostly clean" with no significant escalation in risk signals.
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## Relationship Mapping
The IP maintains associations with:
- DNS: ec2-3-81-250-64.compute-1.amazonaws.com (25 relationship entries)
- Network: AMAZON-IAD (25 relationship entries)
All relationships align with expected AWS infrastructure patterns.
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## Recommended Actions
No immediate blocking or remediation actions recommended. The IP is classified as low-risk with no actionable threat indicators.
Monitoring Recommendations:
- Continue routine monitoring of this IP as part of standard AWS infrastructure baseline
- No firewall rules required based on current risk profile
- No specific WAF or cloud security recommendations at this time
---
Intelligence Source: IPDebrief Network Intelligence Platform
Classification: Defensive Security Intelligence
Use Case: SOC Analyst Reference for Network Traffic Analysis
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Northern Virginia |
| ASN | AS14618 |
| Network Name | AMAZON-IAD |
| CIDR Block | 3.80.0.0/12 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-3-81-250-64.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-3-81-250-64.compute-1.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 3.64.0.0/10 |
| Route mapping | Found |
| RPKI Status | Valid |
| Certificates in transparency logs | 0 certificates |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 22% | 2 | 4 |
| routing | 19% | 1 | 2 |
| services | 12% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 20% | 2 | 3 |
| Overall | 19% | 10 | 17 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-17 11:04:44 UTC |
| Last Seen | 2026-09-05 15:22:38 UTC |
| Profile Built | 2026-09-05 16:05:15 UTC |
| Data Freshness | Live |
| Signal Types | 30 |
| Total Observations | 57 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 3.81.250.64
Who owns the IP address 3.81.250.64?
3.81.250.64 is registered to Amazon Data Services Northern Virginia. The address falls within the 3.80.0.0/12 network block. Registration is held at ARIN.
Where is 3.81.250.64 located?
Geolocation data places 3.81.250.64 in Ashburn, VA, United States. The local time zone is America/New_York. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 3.81.250.64 malicious or safe?
3.81.250.64 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 3.81.250.64?
The reverse DNS (PTR) record for 3.81.250.64 is ec2-3-81-250-64.compute-1.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 3.81.250.64 a VPN, proxy, or data center address?
3.81.250.64 is classified as cloud infrastructure based on network ownership and behavioural analysis.