20.190.139.173
20.190.139.173 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 High Risk (70/100); no anonymizing service was detected.
The IP address 20.190.139.173 was observed on Microsoft Azure infrastructure (Microsoft Corporation, ASN 8075). Geolocation data placed the asset in Redmond, Washington, but RTT measurements contradicted the distance physics, flagging the record as implausible. The address carried a High Risk score of 70 and was classified as Campaign Infrastructure with a high likelihood of malicious activity. Threat correlation identified 16 associated IPs and certificate matches for graph.microsoft.com. The asset was flagged for blocking with a critical severity recommendation. Observations spanned from September 27 to October 12, 2026. SOC analysts were advised to block the IP using firewall rules due to the high risk score and strong threat evidence.
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 | 20.180.0.0/14 |
| 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 | 3/3 domains |
| DMARC | 3/3 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 3 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 | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | graph.microsoft.com |
| Valid From | 2026-09-03T12:20:29+00:00 |
| Valid Until | 2027-03-02T12:20:29+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 99 days |
🛡️ Public Network Snapshot
| Origin ASN | AS8075 |
| Network Prefix | 20.184.0.0/13 |
| Route mapping | Found |
| HSTS | Enabled |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 8 |
| routing | 8% | 1 | 1 |
| services | 30% | 2 | 6 |
| ownership | 17% | 2 | 3 |
| reputation | 23% | 1 | 5 |
| geolocation | 31% | 2 | 6 |
| Overall | 23% | 10 | 29 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-27 18:03:31 UTC |
| Last Seen | 2026-10-30 16:35:46 UTC |
| Profile Built | 2026-10-30 16:44:42 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 52 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 20.190.139.173
Who owns the IP address 20.190.139.173?
20.190.139.173 is registered to Microsoft Corporation. The address falls within the 20.180.0.0/14 network block. Registration is held at ARIN.
Where is 20.190.139.173 located?
Geolocation data places 20.190.139.173 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 20.190.139.173 malicious or safe?
20.190.139.173 currently carries a high risk assessment, meaning indicators associated with malicious or abusive activity have been observed. This assessment is generated from continuously collected signals and can change over time.
What ports are open on 20.190.139.173?
Responsive ports observed on 20.190.139.173 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 20.190.139.173 a VPN, proxy, or data center address?
20.190.139.173 is classified as cloud infrastructure based on network ownership and behavioural analysis.