66.132.172.213
IP Intelligence Briefing: 66.132.172.213
Date: 2026-06-07
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Ownership: Censys, Inc. (ASN 398324, ARIN-registered)
- Geolocation: United States (MA, Boston), inferred via MaxMind.
- Network Role: Firewalled / No Services detected.
- Threat Indicators: No malicious activity, no blacklists, no known campaigns.
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**2. Observation History**
- Geolocation Anomalies:
- RTT (Round-Trip Time) inconsistency: 37ms vs. expected 152.5ms for 7,626km distance.
- Geolocation signal claims Boston (37.751°N, -97.822°W), but RTT suggests potential spoofing.
- DNS Associations:
- Linked to `213.172.132.66.censys-scanner.com` (Censys-owned domain).
- No email authentication (SPF/DKIM) detected.
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**3. Relationships**
- DNS:
- Resolves to `censys-scanner.com` (likely a scanning or testing tool).
- Network:
- Subnet `66.132.172.0/24` is registered to Censys, Inc.
- No direct links to malicious organizations or subnets.
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**4. Neighborhood Analysis**
- Subnet Abuse Density: 6.52% (mostly clean).
- Neighbor Risks:
- 57 IPs flagged as medium risk (50–70 score), 37 low risk.
- Notable neighbors:
- `66.132.172.34` (risk 50), `66.132.172.36` (risk 50).
- Overall Risk: Subnet appears operational but contains mixed-risk IPs.
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**5. Actionable Insights**
- Monitor Geolocation Discrepancies: Investigate RTT anomalies for spoofing or misconfigured routing.
- Verify DNS Usage: Confirm legitimacy of `censys-scanner.com` and its role in network traffic.
- Subnet Context: While the IP is owned by a legitimate entity, the subnet contains moderate-risk neighbors. Consider isolating high-risk siblings if traffic patterns deviate.
- Threat Context: No direct malicious indicators, but network anomalies warrant further scrutiny.
Recommendation: No immediate blocking required, but continuous monitoring of geolocation consistency and subnet activity is advised.
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Source: IPDebrief Threat Intelligence Platform
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Censys, Inc. |
| ASN | AS398324 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 213.172.132.66.censys-scanner.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 213.172.132.66.censys-scanner.com |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| 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 | 35% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 42% | 2 | 3 |
| Overall | 24% | 9 | 13 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-14 01:10:25 UTC |
| Last Seen | 2026-06-26 18:11:31 UTC |
| Profile Built | 2026-06-07 02:31:00 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 19 |
Full dossier details are available via our API.