37.66.222.161
IP Intelligence Briefing: 37.66.222.161
Date: 2026-06-13
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership:
- ISP: SFR Legal Contact (FR)
- ASN: Unassigned
- Geolocation: Toulouse, Occitanie, France (43.6046°N, 1.4451°E)
- Threat Indicators:
- No malicious activity, spam, or known attacker associations detected.
- No DNS-based threats or certificate mismatches.
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**2. Network Behavior**
- Subnet: 37.66.222.161/24
- Subnet Risk: "Mostly Clean" (abuse density 0.5, 1 threat sibling in 2 total).
- Neighbor Analysis:
- 1 active neighbor (37.66.222.203) with risk score 25 and authority score 60.
- No immediate lateral movement or shared threats detected.
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**3. Historical Observations**
- Ownership Stability: Consistent SFR assignment since 2026-06-13.
- Geolocation Validation:
- ICMP blocked, but geolocation matches Toulouse, France (1,055.5 km from probe).
- No recent changes in network behavior or threat signals.
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**4. Relationships & DNS**
- DNS Associations:
- PTR hostname: `161.222.66.37.rev.sfr.net` (SFR domain).
- SPF record present, but no DMARC or HTTP security headers detected.
- Network Role:
- Firewalled / No services exposed (no open ports, TLS, or HTTP banners).
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**5. Recommendations**
- Monitor Subnet: Track 37.66.222.203 due to higher authority score.
- DNS Security: Ensure SPF alignment and consider DMARC implementation for `sfr.net`.
- Geolocation Validation: Confirm ICMP access restrictions are intentional and not indicative of network segmentation.
Conclusion: This IP is low risk and associated with a legitimate ISP. No immediate action required, but monitor subnet neighbors and DNS configurations.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | SFR Legal Contact |
| ASN | AS15557 |
| Network Name | SFR-INFRA |
| CIDR Block | 37.66.216.0/21 |
| RIR | RIPE |
| Country | FR |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 161.222.66.37.rev.sfr.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 161.222.66.37.rev.sfr.net |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Present |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-06-06 13:36:06 UTC |
| Last Seen | 2026-06-13 14:05:40 UTC |
| Profile Built | 2026-06-13 14:12:13 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 19 |
Full dossier details are available via our API.