213.176.16.28
IP Intelligence Dossier
Your IP: 216.73.217.135
🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.
IP Intelligence Briefing: 213.176.16.28
Date: 2026-06-06
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**1. Core Profile**
- Risk Rating: Low Risk (Risk Score: 25 / 100)
- Provider: Global Connectivity Solutions (ASN: 215540)
- Geolocation: Amsterdam, North Holland, Netherlands (52.13° N, 5.29° E)
- Network Role: Single-Service Host (SSH service active)
- Threat Indicators: No malicious activity detected (no blacklists, campaigns, or abuse reports).
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**2. Observational History**
- Latest Scan (2026-05-29):
- Open port 22 (SSH) with banner: `SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.15`.
- No TLS certificate or HTTP service detected.
- Geolocation Consistency: Plausible Amsterdam location with 150km accuracy radius.
- Network Stability: Subnet (213.176.16.0/24) shows 0.5 abuse density (mostly clean).
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**3. Relationships & Associations**
- DNS: Linked to 136997.ip-ptr.tech (PTR record). No email authentication (SPF/DKIM) detected.
- Network: Part of GCS_SER-NET (213.176.16.0/24).
- Neighbors:
- 213.176.16.100 (Risk Score: 50 / 100) – Higher risk sibling in same subnet.
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**4. Threat & Mitigation Context**
- No Known Threats: No malicious campaigns, spam, or DNSBL listings.
- Neighbor Risk: Subnet contains one higher-risk IP (213.176.16.100). Monitor for lateral movement or shared infrastructure risks.
- SSH Security: Ensure SSH is configured with strong keys and rate limiting to mitigate brute-force attempts.
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**5. Recommendations**
- Monitor Subnet: Track 213.176.16.100 for suspicious activity.
- Secure SSH: Enforce key-based authentication and disable password login.
- Verify DNS: Investigate 136997.ip-ptr.tech for potential spoofing or misconfigured PTR records.
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Source: IPDebrief Threat Intelligence Platform | Last Updated: 2026-06-06
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Global Connectivity Solutions |
| ASN | AS215540 |
| Network Name | GCS_SER-NET |
| CIDR Block | 213.176.16.0/24 |
| RIR | RIPE |
| Country | NL |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 136997.ip-ptr.tech |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 136997.ip-ptr.tech |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Single-Service Host |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
| SSH Version | SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.15 |
🔐 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 | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 23% | 2 | 2 |
| Overall | 22% | 10 | 14 |
Coverage: 6/6 dimensions · Data sufficiency: sufficient
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-12 21:54:58 UTC |
| Last Seen | 2026-06-13 03:45:31 UTC |
| Profile Built | 2026-06-06 15:36:33 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 20 |
🔍 19 signal types · 20 observations collected
This report is generated from 19+ 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.