131.243.245.147
The IP address 131.243.245.147 was assigned to Lawrence Berkeley National Laboratory (ASN 16) and geolocated to Moraga, California. The profile assigned a Low Risk reputation score of 25. Network analysis confirmed the host was firewalled with no open ports or active services. DNS resolution resolved to `et-0-0-0-1057.secr-n1-core.lbl.gov`. Behavioral indicators showed no active attacks, honeypot hits, or incidents. While the threat actor classification tagged the host as "Suspicious," the threat indicators list remained empty and the neighborhood classification was clean. The recommendation was to monitor the address due to its clean neighborhood context. Data freshness confirmed live observations as of 2026-09-07.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Lawrence Berkeley National Laboratory |
| ASN | AS16 |
| Network Name | LBL-IP-NET2 |
| CIDR Block | 131.243.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | et-0-0-0-1057.secr-n1-core.lbl.gov |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | et-0-0-0-1057.secr-n1-core.lbl.gov |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| 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 | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| 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 | 50% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 25% | 6 | 7 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-07 18:35:12 UTC |
| Last Seen | 2026-09-07 18:35:12 UTC |
| Profile Built | 2026-09-07 18:51:40 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 22 |
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