52.107.251.53
The IP address 52.107.251.53 operated as a cloud compute infrastructure host owned by Microsoft Corporation (ASN 8075) within the 52.96.0.0/12 block. Services exposed included HTTP and HTTPS on ports 80 and 443, utilizing a DigiCert TLS certificate associated with outlook.com. Reputation assessment classified the IP as Low Risk with a score of 20. No threat indicators, blacklist hits, or known attacker campaigns were associated with the address.
Geolocation data placed the origin in Redmond, Washington, though RTT measurements contradicted this claim against minimum physics thresholds. Neighborhood analysis of the 52.107.251.0/24 subnet revealed a mixed classification with an abuse density of 22.2% and 16 threat siblings, contributing an inherited risk score of 8. Behavioral monitoring recorded zero honeypot hits or enumeration strikes. The overall assessment recommended Monitor actions at Low severity due to signal contradictions.
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 | 52.96.0.0/12 |
| 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 | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 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 | 39% | 2 | 6 |
| routing | 13% | 1 | 1 |
| services | 38% | 2 | 5 |
| ownership | 29% | 2 | 4 |
| reputation | 32% | 1 | 6 |
| geolocation | 34% | 2 | 5 |
| Overall | 31% | 10 | 27 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-08 07:59:09 UTC |
| Last Seen | 2026-09-22 15:34:29 UTC |
| Profile Built | 2026-09-22 15:45:02 UTC |
| Data Freshness | Live |
| Signal Types | 25 |
| Total Observations | 57 |
Full dossier details are available via our API.