## INTELLIGENCE BRIEFING: IP Address 13.107.139.11
Classification: Legitimate Cloud Infrastructure | Risk Level: Low | Risk Score: 25
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**Executive Summary**
IP address 13.107.139.11 is identified as Microsoft Corporation cloud infrastructure operating within Azure's global network. The IP presents a low-risk profile with no active threat indicators, no blacklist associations, and a clean operational neighborhood. This address functions as a standard web server endpoint for Microsoft's Azure Edge CDN services.
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**Ownership and Infrastructure**
- Organization: Microsoft Corporation
- ASN: 8075 (MSFT)
- Network Block: 13.64.0.0/11
- Geographic Location: Redmond, Washington, United States
- Infrastructure Type: Microsoft Azure (CloudCompute)
- Classification: Cloud provider, hosting infrastructure
- Network Role: Web Server
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**Technical Profile**
- Open Ports: TCP/80 (HTTP), TCP/443 (HTTPS)
- TLS Certificate: CN=*.azureedge.net, O=Microsoft Corporation
- Certificate Authority: Microsoft TLS G2 RSA CA OCSP 16
- DNS Resolution: No PTR hostnames recorded
- HTTP Status: 400 (Bad Request)
- HTTP/2 Support: Enabled
- Security Headers: HSTS: No, CSP: No
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**Threat Assessment**
- Threat Indicators: None detected
- Blacklist Count: 0
- Known Attacker: False
- Spam Source: False
- Tor Exit Node: False
- Campaign Associations: None
- Abuse Confidence Score: Not applicable (no abuse signals)
- Threat Persistence: None observed
- Reputation: Low Risk
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**Neighborhood Analysis (Subnet: 13.107.139.0/24)**
- Abuse Density: 0 (Clean)
- Subnet Classification: Clean
- Inherited Risk: 0
- Total Siblings: 1
- Active Siblings: 1
- Threat Siblings: 0
- Risk Distribution: No high-risk, medium-risk, or low-risk neighbors identified
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**Temporal Analysis (Observation History)**
- Total Observations: 21 signals recorded
- Observation Period: Multiple timestamps across monitoring cycles
- Ownership Stability: Consistent Microsoft Corporation attribution
- Geographic Consistency: Signals consistently resolve to Redmond, WA
- Threat Trend: Stable, no escalation detected
- Recent Activity: Most recent signals from 2026-08-07
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**Relationship Graph**
- Total Relationships: 12 connections
- Relationship Type: Same Network (MSFT)
- Connection Pattern: All relationships indicate Microsoft network infrastructure membership
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**Recommended Security Actions**
- Risk Score: 25 (Low)
- Recommended Actions: None required
- Firewall Rules: No restrictive rules recommended
- Policy Guidance: Standard allow-listing for Microsoft Azure infrastructure
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**Intelligence Assessment**
IP 13.107.139.11 represents legitimate Microsoft Azure cloud infrastructure. The low risk score (25), absence of threat indicators, clean subnet classification, and stable ownership history indicate normal cloud service operation. The IP serves Microsoft's Azure Edge CDN services (*.azureedge.net) and should be permitted through standard security controls.
Recommendation: No blocking or restrictive measures warranted. This IP represents trusted cloud provider infrastructure and should be whitelisted or permitted in accordance with standard Microsoft Azure egress/ingress policies.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Microsoft Corporation |
| ASN | AS8075 |
| Network Name | MSFT |
| CIDR Block | 13.64.0.0/11 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
π DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | β |
| 443 | https | tcp | β |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | *.azureedge.net |
| Valid From | 2026-06-12T04:52:17+00:00 |
| Valid Until | 2026-12-09T04:52:17+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 180 days |
| Serial Number | 55004D66F906172D23CA6CF8800000004D66F9 |
| Thumbprint | E7EEB5EEF16C63048D25D4EFA2EF20DF1861ADCC |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 42% | 2 | 5 |
| routing | 13% | 1 | 1 |
| services | 30% | 2 | 3 |
| ownership | 30% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 27% | 2 | 2 |
| Overall | 28% | 10 | 17 |
| Data Coherence | Mostly Consistent (80%) β 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-08-02 20:54:05 UTC |
| Last Seen | 2026-08-13 04:08:14 UTC |
| Profile Built | 2026-08-13 04:16:16 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
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