52.115.154.251
52.115.154.251 is an IPv4 address operated by Microsoft Corporation (AS8075), geolocated to San Francisco, United States. It belongs to datacenter or hosting infrastructure. As of November 1, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
Subject IP 52.115.154.251 was identified as legitimate infrastructure owned by Microsoft Corporation (ASN 8075). Geolocation data indicated a location in San Francisco, CA, consistent with the Microsoft Azure cloud compute network. Analysis showed the address was not associated with any known threat indicators or malicious campaigns, and the blacklist count remained at zero. Network role classification confirmed the endpoint as a cloud hosting provider utilizing port 443 for HTTPS traffic. TLS certificate validation resolved to tr.teams.microsoft.com, aligning with Microsoft Teams relay infrastructure. The surrounding neighborhood maintained a clean classification with an abuse density of 0.0164. Based on a risk score of zero and lack of significant risk indicators, the recommended action was to allow traffic through security controls.
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 | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 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 |
|---|---|---|---|
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 80, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | tr.teams.microsoft.com*.tr.teams.microsoft.comturn.teams.microsoft.com*.turn.teams.microsoft.com*.relay.teams.microsoft.comaz.relay.teams.cloud.microsoft*.az.relay.teams.cloud.microsoftr0.az.relay.teams.microsoft.com*.r0.az.relay.teams.microsoft.comr0.az.relay.teams.cloud.microsoft |
| Valid From | 2026-10-13T19:57:52+00:00 |
| Valid Until | 2027-01-21T18:57:52+00:00 |
| TLS Protocol | Tls12 |
| Cipher Suite | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 99 days |
🛡️ Public Network Snapshot
| Origin ASN | AS8075 |
| Network Prefix | 52.112.0.0/14 |
| Route mapping | Found |
| Certificates in transparency logs | 0 certificates |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 36% | 2 | 3 |
| routing | 17% | 1 | 1 |
| services | 38% | 2 | 4 |
| ownership | 35% | 2 | 3 |
| reputation | 18% | 1 | 2 |
| geolocation | 25% | 1 | 1 |
| Overall | 28% | 9 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-23 13:32:13 UTC |
| Last Seen | 2026-11-01 09:22:41 UTC |
| Profile Built | 2026-11-01 09:23:44 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 52.115.154.251
Who owns the IP address 52.115.154.251?
52.115.154.251 is registered to Microsoft Corporation. The address falls within the 52.96.0.0/12 network block. Registration is held at ARIN.
Where is 52.115.154.251 located?
Geolocation data places 52.115.154.251 in San Francisco, CA, 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 52.115.154.251 malicious or safe?
52.115.154.251 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 52.115.154.251?
Responsive ports observed on 52.115.154.251 include 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 52.115.154.251 a VPN, proxy, or data center address?
52.115.154.251 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.