## INTELLIGENCE BRIEFING: 159.89.11.21/32
Classification: LOW RISK
Date: 2026-08-06
Analyst: IPDebrief Intelligence System
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EXECUTIVE SUMMARY
IP address 159.89.11.21 is a DigitalOcean cloud compute instance located in Frankfurt am Main, Germany (DE). The IP presents a low risk profile with a risk score of 25/100. No active threat indicators, malicious campaigns, or significant blacklist presence were observed. The asset operates as a firewalled cloud server with no open ports detected.
---
ASSET PROFILE
Ownership & Provider:
- Organization: DigitalOcean, LLC
- ASN: 14061
- Network Block: 159.89.0.0/16
- RIR: ARIN
- Classification: CloudCompute Infrastructure
Geolocation:
- Country: Germany (DE)
- Region: Hesse
- City: Frankfurt am Main
- Confidence: GeoPlausible (validated)
- RTT: 121.2ms average (5.93ms minimum possible)
- Distance from Frankfurt: 296.5km
Network State:
- Services: None detected (Firewalled)
- Open Ports: 0
- TLS Certificate: None
- HTTP Banner: None
- Infrastructure Status: Active but no publicly exposed services
---
THREAT ASSESSMENT
Risk Score: 25/100 (LOW RISK)
Provider Score: 0
Authority Score: 0
Stability Score: 0
Threat Indicators:
- Abuse Confidence Score: N/A
- Known Attacker: FALSE
- Spam Source: FALSE
- Tor Exit Node: FALSE
- Blacklist Count: 0
- DNSBL Listed: 1/8 lists
- Known Campaigns: None
Behavioral Analysis:
- Honeypot Hits: 0
- Enumeration Strikes: 0
- WAF Violations: 0
- Total Incidents: 0
- Persistently Malicious: FALSE
- Threat Persistence Days: 0
---
OBSERVATION HISTORY
Total Observations: 14
Recent Activity (2026-08-06):
- Ownership signals: Consistent DigitalOcean, LLC attribution (Confidence: 0.95)
- ASN signals: ARIN registry (Confidence: 0.90)
- Geolocation signals: Mixed results (DE Germany with 0.35 confidence, US Colorado with 0.95 confidence)
- Network latency: Stable RTT measurements (114-143ms)
- No ownership changes detected
- No persistent malicious activity observed
Temporal Indicators:
- Ownership Changes: 0
- Threat Observation Count: 0
- Is Persistently Malicious: FALSE
---
RELATIONSHIP ANALYSIS
Connected Entities: 2
- Same Network: DIGITALOCEAN-159-89-0-0 (Duplicate reference)
Network Context:
- No direct associations with organizations, hostnames, or certificates detected
- No certificate matches or correlated IPs in campaign analysis
---
NEIGHBORHOOD ANALYSIS
Subnet: 159.89.11.0/24
Abuse Density: 0
Total Siblings: 1
Active Siblings: 1
Threat Siblings: 0
Neighbor Inventory:
| IP Address | Risk Score | Authority Score | Classification |
|---|---|---|---|
| 159.89.11.63 | 25 | 50 | Low Risk |
Risk Distribution:
- High Risk: 0
- Medium Risk: 0
- Low Risk: 1
The /24 subnet demonstrates minimal abuse activity with zero high or medium risk neighbors.
---
SECURITY RECOMMENDATIONS
Actionable Guidance:
- BLOCK: Not recommended at this time
- MONITOR: Standard cloud infrastructure monitoring
- ALLOW: Permissive firewall rules acceptable
Rationale:
The IP address presents a low-risk profile with no active threat indicators, blacklist presence, or malicious campaign associations. As a DigitalOcean cloud compute instance with no open services, it poses minimal threat to defensive operations. No immediate blocking or restrictive firewall rules are warranted.
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CONCLUSION
IP 159.89.11.21 is a benign DigitalOcean cloud server with no observed malicious activity. The asset operates in a low-abuse-density subnet with a single neighboring IP also classified as low risk. SOC teams may permit traffic from this address with standard monitoring protocols.
Status: MONITOR (Low Risk)
Last Updated: 2026-08-06
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | DigitalOcean, LLC |
| ASN | AS14061 |
| Network Name | DIGITALOCEAN-159-89-0-0 |
| CIDR Block | 159.89.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
๐ DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 17% | 1 | 1 |
| routing | 17% | 1 | 1 |
| services | 24% | 2 | 2 |
| ownership | 35% | 2 | 3 |
| reputation | 17% | 1 | 1 |
| geolocation | 35% | 2 | 3 |
| Overall | 24% | 9 | 11 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-08-01 22:41:24 UTC |
| Last Seen | 2026-08-13 03:08:55 UTC |
| Profile Built | 2026-08-13 03:23:27 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 21 |
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