52.123.187.101
Intelligence Briefing: 52.123.187.101
The IP address 52.123.187.101 was identified as an active asset within Microsoft Corporation infrastructure (ASN 8075). The address resided within the 52.120.0.0/14 block, assigned to Microsoft Azure CloudCompute services in Washington, Virginia. Observations showed open TCP ports 80 and 443, with HTTPS traffic utilizing a certificate valid for *.trouter.teams.microsoft.com.
Threat intelligence indicated a Low Risk classification with a risk score of 25. The address was not flagged as a known attacker, Tor exit, or spam source, though one DNSBL listing was recorded out of eight total checks. No specific threat indicators or known campaigns were associated with the IP.
Data quality presented a contradiction between claimed geolocation and RTT physics measurements, with a distance of 6380km conflicting against a 27ms round-trip time. The surrounding subnet (52.123.187.0/24) was classified as mostly_clean with an abuse density of 0.0667.
Due to signal contradictions and low data sufficiency, the overall confidence was rated Very Low. The recommended action was Monitor with low severity, pending resolution of discrepancies.
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 | 4/4 domains |
| DMARC | 4/4 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 4 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 | *.trouter.teams.microsoft.com*.trouter.communication.microsoft.com*.trouter.communications.svc.cloud.microsoft |
| Valid From | 2026-08-29T16:37:33+00:00 |
| Valid Until | 2027-02-25T16:37:33+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 180 days |
| Serial Number | 4900CBA93BCE2ED24C7D6FD5EA000000CBA93B |
| Thumbprint | 9334FFBDC9AF5B5E1789309B016193A95C13F478 |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-31 05:42:25 UTC |
| Last Seen | 2026-09-21 14:14:13 UTC |
| Profile Built | 2026-09-21 14:23:47 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 36 |
Full dossier details are available via our API.