133.242.172.237
IP Intelligence Dossier
Your IP: 216.73.216.123
🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.
IP Intelligence Briefing: 133.242.172.237
*Generated via IPDebrief Threat Intelligence Platform*
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Network Provider: Japan Network Information Center (JPNIC) / SAKURA-NET
- Geolocation: Tokyo, Chiyoda-ku, Japan (35.69°N, 139.69°E)
- Subnet: 133.242.172.0/24 (owned by SAKURA-NET)
- Network Role: Firewalled / No Services (no open ports, no TLS/HTTP services)
- Ownership Stability: No recent changes (ownership duration: unknown)
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**2. Threat Indicators**
- Malicious Activity: None detected (no malware, phishing, or exploit indicators).
- Threat Feeds: Not listed in known attacker/blacklist databases.
- DNS Security: DNSSEC validated, no CAA records, SPF/DKIM/DMARC absent.
- BGP/Network: Stable routing (no recent route changes), no route leaks.
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**3. Observation History**
- Risk Trends: Consistent low-to-moderate risk score (50) since last observation.
- Behavioral Signals: No scans, enumeration, or suspicious traffic detected.
- Geolocation Consistency: Plausible Japan-based origin (Tokyo).
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**4. Relationships & Network Context**
- DNS Associations: Linked to `ik1-123-68233.vs.sakura.ne.jp` (likely internal/legitimate).
- Subnet Context: Part of SAKURA-NET (owned by JPNIC). No malicious neighbors identified.
- Network Classification: No CDN, cloud, or mobile carrier flags.
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**5. Recommendations**
- Monitoring: Track for unexpected service exposure or DNS changes.
- Firewall: No immediate blocking required; monitor as part of routine network hygiene.
- Context: Legitimate infrastructure with no evidence of compromise.
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Note: This IP exhibits no active threats but should be monitored for anomalies. No actionable security measures required at this time.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Japan Network Information Center |
| ASN | AS7684 |
| Network Name | SAKURA-NET |
| CIDR Block | 133.242.172.0/24 |
| RIR | APNIC |
| Country | JP |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ik1-123-68233.vs.sakura.ne.jp |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ik1-123-68233.vs.sakura.ne.jp |
🔐 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
No certificate
Issued by —
N/A
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 13% | 1 | 1 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 27% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 13% | 1 | 1 |
| Overall | 13% | 6 | 7 |
Coverage: 5/6 dimensions · Data sufficiency: partial
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-24 06:32:10 UTC |
| Last Seen | 2026-06-10 13:24:34 UTC |
| Profile Built | 2026-06-10 13:34:00 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 17 |
🔍 17 signal types · 17 observations collected
This report is generated from 17+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
ℹ️ About This Report
All data shown is publicly available network metadata — IP addresses do not reliably identify individuals.
Assessments are probabilistic and should not be used as sole basis for access control decisions.
To report an issue or request data review, contact admin@ipdebrief.com.