85.203.23.121
IP Intelligence Briefing: 85.203.23.121
*Generated via IPDebrief tools (profile, history, relationships, and neighborhood analysis)*
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership: Registered to GSL Networks Pty LTD (Australia) via RIPE NCC, but geolocated to Singapore (Bukit Merah Estate).
- Network Role: Firewalled with no open services; no TLS/HTTP activity detected.
- Threat Indicators: No malicious indicators, DNSBL listings, or campaign associations.
- Control Plane:
- AS137409 (GSL Networks) with DNSSEC validation.
- BGP Prefix: 85.203.23.0/24; route stability score: 0.13 (Minimal).
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**2. Observation History**
- Recent Activity:
- Detected in 8 DNSBL lists (confidence: 0.85), including high-severity listings.
- Geolocation inferred via multi-signal analysis (accuracy: ±45 km).
- No persistent malicious behavior; threat observation count: 1.
- Stability: No ownership changes in the last 30 days.
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**3. Network Relationships**
- Shared Subnet: 85.203.23.0/24 (SG).
- Linked Entities:
- Same Network: 12 entries (redundant, likely system artifact).
- ASN137409: GSL Networks Pty LTD (Australia).
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**4. Neighborhood Analysis**
- Subnet Abuse Density: 0.3376 (low, 33.76% of IPs flagged).
- Neighbors:
- 100 IPs in 85.203.23.0/24.
- Medium/Low Risk: 55/45 split (45 IPs with risk scores ≥40).
- Notable: IPs like 85.203.23.50–57 show similar risk profiles.
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**5. Recommendations**
- Monitor Subnet: The 85.203.23.0/24 subnet has a moderate abuse density. Investigate neighbors with medium risk scores (e.g., 85.203.23.50–57).
- Verify DNSBL Listings: Confirm if the IP’s presence in DNSBLs is a false positive or indicative of compromised infrastructure.
- Geolocation Discrepancy: Investigate the mismatch between Singapore geolocation and Australian ASN ownership.
- Firewall Rules: Consider allowing traffic from this IP if it’s a legitimate service, given its low-risk profile and firewalled state.
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Note: No immediate mitigation required for the IP itself, but subnet-level monitoring is advised.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | VPN Consumer Singapore, Republic of Singapore |
| ASN | AS137409 |
| Network Name | — |
| CIDR Block | — |
| RIR | RIPE |
| Country | — |
| 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 | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 24% | 2 | 3 |
| reputation | 26% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 20% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:38 UTC |
| Last Seen | 2026-06-23 23:17:06 UTC |
| Profile Built | 2026-06-23 23:25:38 UTC |
| Data Freshness | Live |
| Signal Types | 16 |
| Total Observations | 17 |
Full dossier details are available via our API.