52.123.251.17
52.123.251.17 is an IPv4 address operated by Microsoft Corporation (AS8075), geolocated to Redmond, United States. It belongs to datacenter or hosting infrastructure. As of October 30, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
IP address 52.123.251.17 was identified as a Microsoft Corporation asset (ASN 8075) operating within the 52.120.0.0/14 block. The profile reported a Low Risk reputation with a risk score of 25. Network role classification indicated CloudCompute hosting infrastructure serving as a Web Server. Open ports included 80, 443, and 8443, utilizing TLS certificates issued for outlook.com.
Threat indicators were absent, and no known campaigns or blacklist entries were found. Behavioral analysis recorded zero honeypot hits, enumeration strikes, or WAF violations. Geolocation data placed the host in Redmond, WA, though validation flagged a contradiction between the claimed 6380km distance and an observed 24ms RTT. The surrounding subnet was classified as mostly_clean, containing 15 threat siblings.
Overall confidence was labeled Very Low due to signal contradictions. The recommended action was to Monitor with low severity.
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 | 15/25 domains |
| DMARC | 18/25 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 25 domains |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | Web server detected |
| 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 |
🛡️ Public Network Snapshot
| Origin ASN | AS8075 |
| Network Prefix | 52.120.0.0/14 |
| Route mapping | Found |
| RPKI Status | Valid |
| Certificates in transparency logs | 0 certificates |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 23% | 2 | 6 |
| routing | 43% | 3 | 4 |
| services | 20% | 2 | 4 |
| ownership | 7% | 2 | 3 |
| reputation | 22% | 1 | 6 |
| geolocation | 25% | 2 | 6 |
| Overall | 23% | 12 | 29 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (65%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-09 13:53:27 UTC |
| Last Seen | 2026-10-30 12:11:29 UTC |
| Profile Built | 2026-10-30 12:18:57 UTC |
| Data Freshness | Live |
| Signal Types | 31 |
| Total Observations | 93 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 52.123.251.17
Who owns the IP address 52.123.251.17?
52.123.251.17 is registered to Microsoft Corporation. The address falls within the 52.120.0.0/14 network block. Registration is held at ARIN.
Where is 52.123.251.17 located?
Geolocation data places 52.123.251.17 in Redmond, WA, United States. The local time zone is America/Los_Angeles. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 52.123.251.17 malicious or safe?
52.123.251.17 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What ports are open on 52.123.251.17?
Responsive ports observed on 52.123.251.17 include 80, 443, 8443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 52.123.251.17 a VPN, proxy, or data center address?
52.123.251.17 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.