52.123.251.10
Intelligence Briefing: 52.123.251.10/32
Analysis identified 52.123.251.10 as infrastructure owned by Microsoft Corporation (ASN 8075) within the 52.120.0.0/14 CIDR block. Geolocation data located the endpoint in Washington, Virginia, US. Network role classification confirmed the IP operated as a Cloud Compute web server, exposing ports 80, 443, and 8443. TLS certificate validation indicated a DigiCert Global G2 issuance for outlook.com, covering services including Office 365 and Hotmail.
Threat intelligence scoring assigned a Low Risk reputation with a risk score of 25. While behavioral analysis detected no known attacker activity or WAF violations, the profile was tagged as a Suspicious Host with one DNSBL listing. Control plane data showed the IP as a hosted entity without advanced routing features. Security operations recommendations suggested monitoring the endpoint due to low-grade risk indicators and a Fair DNS hygiene score. The address was observed active from September 4, 2026, through September 12, 2026.
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 | 10/14 domains |
| DMARC | 12/14 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 14 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 | 13% | 1 | 2 |
| routing | 13% | 1 | 1 |
| services | 38% | 2 | 5 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 35% | 2 | 3 |
| Overall | 23% | 9 | 16 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-04 15:19:05 UTC |
| Last Seen | 2026-09-21 00:31:46 UTC |
| Profile Built | 2026-09-22 16:27:29 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 43 |
Full dossier details are available via our API.