20.237.211.0
## IP Intelligence Briefing: 20.237.211.0/32
Classification: Microsoft Azure Cloud Infrastructure
Risk Level: Low Risk (Score: 25)
Analysis Date: Current
Ownership & Network Role
The target IP 20.237.211.0 is assigned to Microsoft Corporation (ASN 8075) as part of Microsoft Azure cloud infrastructure. The IP resides in the 20.192.0.0/10 BGP prefix and is geolocated to San Francisco, CA, US. Network classification indicates CloudCompute infrastructure with hosting capabilities, but no active services detected (firewalled/no services).
Risk Assessment
- Overall Risk Score: 25 (Low Risk)
- Provider Score: 0
- Authority Score: 0
- Operator Score: 0.1304 (Minimal)
- Threat Indicators: None detected. No known attacker, spam source, or Tor exit node indicators.
- Blacklist Status: Listed on 1 of 8 DNSBLs
- Abuse Confidence: Not applicable (legitimate infrastructure)
Service & DNS Analysis
- Open Ports: None detected
- TLS Certificate: None
- HTTP Title: None
- DNS Resolution: No PTR hostnames, no forward resolution confirmed
- Email Auth: No SPF, DMARC, or TXT records
- Certificate Authority Authorization: Not configured
Neighborhood Analysis (20.237.211.0/24)
- Subnet Abuse Density: 1 (low)
- Classification: Mostly clean
- Sibling IPs: 1 total, 1 active
- Threat Siblings: 1 identified
- Inherited Risk: 2 (minimal)
Historical Observations
- Total Observations: 21
- Timeline: June 14–June 28, 2026
- Threat Persistence: Single threat observation (not persistently malicious)
- Ownership Stability: No ownership changes observed
- Recent Signals: Operator score consistently "Minimal" across multiple observations
Relationships
- Network Relationships: 23 relationships identified, all to Microsoft (MSFT) network
- External Relationships: No external hostnames, organizations, or certificates linked
Recommended Actions
No firewall rules recommended. This IP represents legitimate Microsoft Azure cloud infrastructure with low risk characteristics. The presence of a single threat sibling in the /24 subnet does not warrant blocking the target IP.
Monitoring Recommendation: No special monitoring required. Standard cloud infrastructure traffic patterns should be expected. If traffic anomalies are observed, investigate the single threat sibling IP in the 20.237.211.0/24 subnet separately.
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*Report generated using IPDebrief intelligence tools. Data reflects current network state and historical observations.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Microsoft Corporation |
| ASN | AS8075 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 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 | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 26% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 22% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-14 07:14:07 UTC |
| Last Seen | 2026-06-28 00:25:32 UTC |
| Profile Built | 2026-06-28 18:30:02 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 22 |
Full dossier details are available via our API.