52.123.251.67
The IP address 52.123.251.67/32 was registered to Microsoft Corporation (AS8075) within the 52.120.0.0/14 CIDR block in Redmond, WA. The profile assigned a Low Risk reputation with a risk score of 25. Analysis identified open TCP ports 80, 443, and 8443 serving HTTP and HTTPS services. A TLS certificate issued by DigiCert Global G2 TLS RSA SHA256 2020 CA1 validated the subject CN=outlook.com. The server fingerprint matched Microsoft-HTTPAPI/2.0 operating over HTTP/2.0.
Validation data recorded a geolocation contradiction where claimed distance metrics violated RTT physics measurements, resulting in a GeoPlausible false status. Despite this, the address showed no association with known attacker campaigns, Tor exit nodes, or spam sources. Blacklist counts remained at zero, and no active threat indicators were present. The network role was classified as CloudCompute and Hosting. Due to signal contradictions, the analysis recommended a Monitor action with low severity. Signal observations were recorded between 2026-08-29 and 2026-09-13.
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 | 15/21 domains |
| DMARC | 18/21 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 21 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 | 42% | 2 | 7 |
| routing | 13% | 1 | 1 |
| services | 38% | 2 | 5 |
| ownership | 27% | 2 | 3 |
| reputation | 26% | 1 | 4 |
| geolocation | 36% | 2 | 7 |
| Overall | 30% | 10 | 27 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-29 08:32:06 UTC |
| Last Seen | 2026-09-27 13:26:04 UTC |
| Profile Built | 2026-09-27 13:39:16 UTC |
| Data Freshness | Live |
| Signal Types | 26 |
| Total Observations | 68 |
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