52.123.189.219
Intelligence Briefing: 52.123.189.219
Ownership and Infrastructure
The IP address is attributed to Microsoft Corporation (AS8075) within the 52.120.0.0/14 CIDR block. Network analysis identified the infrastructure as Microsoft Azure cloud compute used for web server services.
Technical Observations
Ports 80 (HTTP) and 443 (HTTPS) remained open. The server banner identified the web server as Kestrel running HTTP/2.0. TLS certificates were issued by Microsoft TLS G2 RSA CA OCSP 02 for the subject CN=*.flightproxy.teams.microsoft.com. DNS hygiene was rated fair with SPF and DMARC records present.
Threat Assessment
The address held a low-risk reputation score of 25. No threat indicators, campaigns, or blacklist entries were associated with the IP. Behavioral analysis recorded zero honeypot hits, enumeration strikes, or WAF violations. However, the associated subnet (52.123.189.0/24) contained one threat sibling with an abuse density of 0.1429.
Anomalies
Geolocation data placed the infrastructure in Virginia, US. RTT physics measurements contradicted this placement, with an observed minimum RTT of 31ms falling below the
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Microsoft Corporation |
| ASN | AS8075 |
| Network Name | MSFT |
| CIDR Block | 52.120.0.0/14 |
| RIR | ARIN |
| Country | United States |
| 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 | 40% (Fair) |
| SPF | 4/4 domains |
| DMARC | 4/4 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 4 domains |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | Kestrel |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.flightproxy.teams.microsoft.com*.flightproxy.teams.cloud.microsoft |
| Valid From | 2026-08-27T04:26:59+00:00 |
| Valid Until | 2027-02-23T04:26:59+00:00 |
| TLS Protocol | Tls12 |
| Cipher Suite | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 180 days |
| Serial Number | 4100C9AEA856C6C945D45E9C92000000C9AEA8 |
| Thumbprint | 551A5A685CA47B42174A9152FF2644719EBEEE8B |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 37% | 2 | 6 |
| routing | 13% | 1 | 1 |
| services | 38% | 2 | 5 |
| ownership | 33% | 2 | 4 |
| reputation | 32% | 1 | 5 |
| geolocation | 37% | 2 | 6 |
| Overall | 32% | 10 | 27 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-09 13:10:54 UTC |
| Last Seen | 2026-09-24 12:53:21 UTC |
| Profile Built | 2026-09-24 13:00:42 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 45 |
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