IP Intelligence Briefing: 27.133.154.218
Date: June 16, 2026
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**1. Core Profile**
- Risk Score: Low (15/100)
- Ownership: Registered to Japan Network Information Center (JPNIC) (ASN 9370).
- Geolocation: Osaka, Japan (JP).
- Network Role: Web server hosting domain meet.skyjet.live (HTTP/HTTPS via nginx).
- TLS Certificate: Valid Letβs Encrypt certificate (CN: meet.skyjet.live).
- Threat Indicators: No malicious activity detected in threat feeds or abuse reports.
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**2. Observation History**
- Recent Signals (Last 30 Days):
- Threat Intelligence: Listed in 1 high-severity threat feed (confidence: 85%).
- Control Plane: Moderate operator score (0.6957) with valid RPKI and DNSSEC.
- Stability: No significant route changes; stable BGP prefix (27.133.128.0/19).
- Temporal Trends: No persistent malicious activity; threat observation count: 1.
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**3. Relationships & Network Context**
- Linked Entities:
- Same network: SAKURA-NET (multiple instances).
- Hosted domain: meet.skyjet.live (no SPF/DKIM/DMArc records).
- Subnet Analysis:
- Subnet: 27.133.154.218/24.
- Abuse density: 1 (low risk).
- No neighboring IPs reported (0 active siblings).
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**4. Security & Operational Notes**
- DNS Configuration:
- Domain meet.skyjet.live is hosted but lacks email security protocols (SPF/DMArc).
- No DNSBL listings detected.
- Services:
- HTTP/HTTPS services active; HTTP/2 enabled.
- No open ports beyond standard web services.
- Recommendations:
- Monitor meet.skyjet.live for email security misconfigurations.
- Verify domain ownership and implement SPF/DKIM/DMArc for email protection.
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**5. Conclusion**
The IP 27.133.154.218 is currently low risk, with no active malicious indicators. It is registered to a reputable Japanese ISP and hosts a legitimate domain. While the network appears stable, the lack of email security measures for the hosted domain warrants further investigation. No immediate mitigation actions are required, but ongoing monitoring is advised.
SOC Action: No blocking recommended. Focus on email security hardening for the hosted domain.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Japan Network Information Center |
| ASN | AS9370 |
| Network Name | β |
| CIDR Block | 27.133.128.0/19 |
| RIR | APNIC |
| Country | β |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Hosted Domain | meet.skyjet.live |
π DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Tier 3 β Basic operator with some routing infrastructure |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | β |
| 443 | https | tcp | β |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | nginx |
| HTTP Title | β |
π TLS Certificate
| SANs | meet.skyjet.live |
| Valid From | 2026-06-26T12:51:35+00:00 |
| Valid Until | 2026-09-24T12:51:34+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 89 days |
| Serial Number | 05D8A9FD86168C119CA8D7E6D10770106B48 |
| Thumbprint | 1CD19304937C690FBCE78E934A8715D4BB575E5E |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 35% | 4 | 6 |
| services | 32% | 2 | 3 |
| ownership | 36% | 2 | 5 |
| reputation | 26% | 1 | 3 |
| geolocation | 26% | 2 | 3 |
| Overall | 30% | 13 | 24 |
| Data Coherence | Consistent (100%) |
| Attribution | High (80%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-07 23:02:59 UTC |
| Last Seen | 2026-06-26 21:06:55 UTC |
| Profile Built | 2026-06-27 15:44:33 UTC |
| Data Freshness | Live |
| Signal Types | 33 |
| Total Observations | 64 |
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