52.123.251.38
Intellectual Property Address: 52.123.251.38/32
Assessment Period: 04 September 2026 – 12 September 2026
Risk Classification: Low Risk (Score: 20)
Infrastructure Profile:
The target address is registered to Microsoft Corporation (AS8075) within the 52.120.0.0/14 block. The network role is classified as CloudCompute and Hosting. Observed services included HTTP (port 80), HTTPS (port 443), and HTTPS-Alt (port 8443). The server banner identified as Microsoft-HTTPAPI/2.0. TLS certificates validated Microsoft domains including outlook.com, live.com, and office.com.
Threat Indicators:
No active threat indicators were associated with the address. No known campaigns, spam sources, or attacker flags were detected. The surrounding 52.123.251.0/24 subnet was classified as mostly clean with an abuse density of 0.125. The address accumulated 36 observations over the assessment period.
Technical Anomalies:
A geolocation contradiction was recorded between the claimed Redmond, WA location and measured RTT physics (27ms RTT inconsistent with 6,380km distance).
Recommendation:
Monitor. Severity remains low due to verified ownership, though signal contradictions require continued observation.
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 | 5/7 domains |
| DMARC | 6/7 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 7 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 | — |
| 8443 | https-alt | tcp | — |
| Closed Ports | 22, 25, 3389, 8080 (3 open / 7 scanned) | ||
| Server | Microsoft-HTTPAPI/2.0 |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | outlook.com*.hotmail.com*.internal.outlook.com*.live.com*.office.com*.office365.com*.outlook.com*.outlook.office365.comattachment.outlook.live.netattachment.outlook.office.net |
| Valid From | 2026-06-26T00:00:00+00:00 |
| Valid Until | 2027-01-10T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 198 days |
| Serial Number | 0E371D2766FD365DADDCF4004297839E |
| Thumbprint | C7C19E04464D744D810EF31A24C54FC22A7909C5 |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 22% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-04 17:39:53 UTC |
| Last Seen | 2026-09-12 01:56:32 UTC |
| Profile Built | 2026-09-12 02:09:20 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 37 |
Full dossier details are available via our API.