217.75.222.91
IP Intelligence Briefing: 217.75.222.91
Date: 2026-06-07
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**Risk Profile**
- Overall Risk Score: Moderate (55/100)
- Network Classification: Firewalled / No Services
- Ownership: Registered to IBG-NET (ASN 210712, Czech Republic)
- Geolocation: Podborany, Ústí nad Labem Region, Czech Republic (49.82°N, 15.47°E)
- Threat Indicators: Clean (no malware, spam, or known attacker associations)
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**Network Behavior**
- Subnet: 217.75.222.0/23
- Subnet Abuse Density: 46.15% (mixed risk, 6/13 siblings flagged as threats)
- BGP Context: Prefix 217.75.208.0/20 routed by GRAPESC-ISP (CZ)
- DNS: PTR record resolves to user91.ibg-net.cz; SPF validated, but no DMARC
- Control Plane: DNSSEC validated, but route stability is flagged as unstable
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**Observation History**
- Geolocation Consistency: Stable (CZ, Podborany)
- Subnet Risk Trends: Abuse density unchanged (0.46) over 30 days
- Network Operator Score: Minimal risk (0.13)
- Historical Signals: No spikes in threat activity or IP reconfiguration
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**Relationships & Neighbors**
- Linked Entities:
- Subnet IBGNET (same network)
- DNS hostname user91.ibg-net.cz
- Subnet Neighbors (13 IPs):
- 5 active IPs (avg. risk 55)
- 6 flagged as threats (avg. risk 70)
- 2 high-risk IPs (risk >80)
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**Actionable Insights**
1. Monitor Subnet: The 217.75.222.0/23 subnet has a mixed risk profile; prioritize monitoring high-risk neighbors (e.g., 217.75.222.30, 217.75.222.32).
2. DNS Security: Ensure DMARC is implemented for user91.ibg-net.cz to mitigate email spoofing risks.
3. Network Stability: Investigate BGP route instability for 217.75.222.91 (controlPlane.isRouteStable = false).
4. Threat Correlation: Cross-check neighboring IPs against threat feeds, as 46% of subnet IPs are flagged as abusive.
No immediate mitigation required, but ongoing monitoring is advised due to subnet-level risks.
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*Generated via IPDebrief intelligence tools.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | IBG-NET |
| ASN | AS210712 |
| Network Name | IBGNET |
| CIDR Block | 217.75.222.0/23 |
| RIR | RIPE |
| Country | CZ |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | user91.ibg-net.cz |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | user91.ibg-net.cz |
π DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Present |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown β Insufficient routing data to classify |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 2 |
| routing | 25% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 27% | 2 | 3 |
| reputation | 19% | 1 | 2 |
| geolocation | 27% | 2 | 2 |
| Overall | 23% | 9 | 11 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-14 01:09:42 UTC |
| Last Seen | 2026-06-07 01:58:33 UTC |
| Profile Built | 2026-06-07 02:01:16 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 17 |
Full dossier details are available via our API.