4.193.121.157
# IP Intelligence Briefing: 4.193.121.157/32
## Executive Summary
Target IP 4.193.121.157 is classified as Low Risk (Risk Score: 25) and identified as Microsoft Azure cloud infrastructure. No active threat indicators or malicious campaigns observed. This IP represents legitimate cloud compute infrastructure with minimal security risk.
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## Infrastructure Profile
| Attribute | Value |
|---|---|
| **IP Address** | 4.193.121.157/32 |
| **Organization** | Microsoft Corporation (MSFT) |
| **ASN** | 8075 |
| **Network Block** | 4.192.0.0/12 |
| **Geolocation** | Singapore (SG) |
| **Coordinates** | 1.35°N, 103.82°E |
| **Timezone** | Asia/Singapore |
| **Infrastructure Type** | Cloud Compute (Azure) |
| **RIR** | ARIN |
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## Threat Assessment
- Risk Score: 25/100 (Low Risk)
- Abuse Confidence: Not applicable (cloud infrastructure)
- Known Attacker: No
- Spam Source: No
- Tor Exit Node: No
- Known Campaigns: None
- Blacklist Count: 0
- Threat Feeds: None detected
DNSBL Status: Listed on 1 of 8 total DNSBL lists
- RPKI State: Not verified
- Route Stability: False
- IRR Consistency: Not applicable
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## Neighborhood Analysis
Subnet: 4.193.121.0/24
- Abuse Density: 0% (Clean classification)
- Total Siblings: 2
- Active Siblings: 2
- Threat Siblings: 0
- Risk Distribution: 1 Low, 0 Medium, 0 High
Neighbor: 4.193.121.6 (Risk Score: 25, Authority Score: 50)
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## Historical Observations
Total Signals Observed: 18
Key Historical Indicators:
- Last Observed: 2026-08-04T22:25:52 UTC
- Cloud Classification: Consistently identified as Microsoft Azure
- Tor/VPN/Proxy: Never observed
- Geolocation: Stable Singapore placement
- Subnet Classification: Persistently "Clean"
- Threat Persistence Days: 0
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## Relationship Graph
All 6 relationship links point to Microsoft (MSFT) network entities:
- 6x Same Network relationships → MSFT
No connections to external threat actors, malicious subnets, or unrelated organizations.
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## Network Services & DNS
- Open Ports: None detected
- TLS Certificate: None
- HTTP Title: None
- Forward DNS Resolution: Not confirmed
- PTR Hostnames: None
- Hosted Domains: 0
- Email Auth (SPF/DMARC): Not applicable (no hosted domain)
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## Control Plane Data
- Origin ASN: 8075 (Microsoft)
- BGP Prefix: 4.192.0.0/12
- Route Changes (30d): 0
- DNSSEC: Valid
- Hop Count: 28
- Transit Network: Comcast
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## Recommended Actions
No security actions recommended.
This IP represents legitimate Microsoft Azure cloud infrastructure with a low risk profile. No firewall rules or blocking actions are warranted at this time. Routine monitoring is sufficient for threat intelligence purposes.
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Intelligence Source: IPDebrief Threat Intelligence Platform
Classification: Standard / SOC Intelligence
Report Generated: Based on real-time IP intelligence data
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 | 4.192.0.0/12 |
| 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 | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS8075 |
| Network Prefix | 4.192.0.0/12 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 3 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 17% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 19% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-03 04:41:21 UTC |
| Last Seen | 2026-08-26 10:26:14 UTC |
| Profile Built | 2026-08-29 08:24:41 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 20 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 4.193.121.157
Who owns the IP address 4.193.121.157?
4.193.121.157 is registered to Microsoft Corporation. The address falls within the 4.192.0.0/12 network block. Registration is held at ARIN.
Where is 4.193.121.157 located?
Geolocation data places 4.193.121.157 in Singapore, SG, Singapore. The local time zone is Asia/Singapore. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 4.193.121.157 malicious or safe?
4.193.121.157 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.
Is 4.193.121.157 a VPN, proxy, or data center address?
4.193.121.157 is classified as cloud infrastructure based on network ownership and behavioural analysis.