IP Intelligence Briefing: 158.158.35.223
Date: 2026-06-13
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership: Microsoft Azure (APNIC) | ASN 8075 | Subnet: 158.158.0.0/16
- Geolocation: Madrid, Spain (ES) | Latitude: 40.42 | Longitude: -3.7 | Accuracy Radius: 150 km
- Network Role: Cloud Compute (Microsoft Azure) | Hosting | No Public Services
- Threat Indicators: Clean | No malicious activity, spam, or known attacker associations
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**2. Observation History**
- Recent Activity (2026-06-13):
- Geo-validation attempted but failed due to ICMP blocking.
- Subnet abuse density: 0.8 (mostly clean, 4/5 neighbors flagged as low risk).
- No persistent threats or campaign correlations detected.
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**3. Relationships**
- Network Links:
- Part of Microsoft's APNIC subnet (MICROSOFT-APNIC-AP).
- No direct links to hostnames, domains, or certificates.
- Provider: Microsoft Azure (cloud infrastructure).
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**4. Neighborhood Analysis**
- Subnet: 158.158.35.223/24
- Neighbor IPs (4 total):
- 158.158.35.55 (Risk: 25)
- 158.158.35.144 (Risk: 25)
- 158.158.35.169 (Risk: 25)
- 158.158.35.197 (Risk: 25)
- Subnet Abuse Density: 0.8 (mostly clean, 4/5 neighbors flagged as low risk).
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**5. Key Takeaways**
- Legitimate Infrastructure: Strongly associated with Microsoft Azure, no malicious indicators.
- Monitor Neighbors: Subnet has low-risk neighbors, but abuse density suggests occasional suspicious activity.
- Geolocation Limitations: Geo-validation incomplete due to ICMP blocking; verify with alternative methods.
Recommendation: No immediate action required. Monitor subnet activity for anomalies, especially given the low-risk neighbors. Confirm geolocation with additional probes if critical.
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*Generated by IPDebrief | © 2026 Jason Alberino*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | IRT-MICROSOFT-APNIC-SG |
| ASN | AS8075 |
| Network Name | MICROSOFT-APNIC-AP |
| CIDR Block | 158.158.0.0/16 |
| RIR | ARIN |
| Country | SG |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
๐ DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 28% | 2 | 4 |
| routing | 24% | 2 | 3 |
| services | 12% | 2 | 2 |
| ownership | 30% | 2 | 3 |
| reputation | 30% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 25% | 11 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-07 23:03:49 UTC |
| Last Seen | 2026-06-27 00:49:05 UTC |
| Profile Built | 2026-06-27 15:02:16 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 29 |
Full dossier details are available via our API.