102.129.51.138📋 Copy

# IP Intelligence Briefing: 102.129.51.138/32

Classification: Defensive Network Intelligence

Report Date: Based on available signal data through 2026-07-28

## Executive Summary

IP 102.129.51.138 is a low-risk residential or infrastructure IP address hosted within Jacobus De Beer's network block (102.129.51.0/24, ASN 327991) in Vanderbijlpark, South Africa. Current risk assessment indicates Low Risk (score: 30/100) with no active threat indicators, open services, or malicious behavior observed. No immediate blocking actions recommended.

## Technical Profile

Risk Assessment:

• Overall Risk Score: 30/100
• Reputation: Low Risk
• Provider Score: 0
• Authority Score: 0

Network Ownership:

• ASN: 327991 (Jacobus De Beer)
• Network Block: 102.129.51.0 - 102.129.51.255 (/24)
• RIR Registration: AFRINIC
• Abuse Contact: Not publicly listed

Geolocation:

• Country: South Africa (ZA)
• Region: Gauteng
• City: Vanderbijlpark
• Timezone: Africa/Johannesburg
• Accuracy Radius: 800 km

## Threat Indicators

Active Threat Signals: None detected

• Not a known Tor exit node
• Not flagged as known attacker
• Not identified as spam source
• Blacklist count: 0
• Pulsedive risk: Not applicable
• Known campaigns: None correlated

Control Plane:

• DNSBL Listed: 2 of 8 total lists
• Route stability: Unstable (isRouteStable: false)
• RPKI State: Not validated
• IRR Consistency: Not evaluated

## Network Services & DNS

Open Ports: None detected

• Service Purpose: Firewalled / No Services
• No TLS certificates or HTTP services active

DNS Resolution:

• PTR Hostname: ms-51-138.megasurf.co.za
• Forward Resolution: Confirmed (1 hostname)
• Hosted Domain Count: 0
• Email Authentication: SPF and DMARC configured
• Forward Hostnames: ms-51-138.megasurf.co.za

## Historical Signal Analysis

Observation Count: 16 signals recorded

Temporal Analysis:

• Most Recent Activity: 2026-07-28
• Ownership Changes: 0
• Threat Persistence Days: 0
• Persistent Malicious Activity: False

Signal Types Observed:

• Geolocation inference (South Africa, Gauteng)
• Port scanning attempts (no open ports)
• Service enumeration (no active services)
• Network classification (residential/infrastructure)

## Subnet Neighborhood Analysis

Scope: 102.129.51.0/24 (80 sibling IPs analyzed)

Risk Distribution:

• High Risk: 1 IP
• Medium Risk: 51 IPs
• Low Risk: 23 IPs
• Abuse Density: 0.012 (low)

Notable Neighbors:

• 102.129.51.2: Risk Score 55, Authority Score 60
• 102.129.51.9: Risk Score 40, Authority Score 60
• 102.129.51.10: Risk Score 55, Authority Score 60
• 102.129.51.16: Risk Score 15, Authority Score 60

## Entity Relationships

DNS Associations:

• ms-51-138.megasurf.co.za (multiple records)

Network Associations:

• 102.129.51.0 - 102.129.51.255 (same /24 block)

## Recommended Security Actions

Current Status: No immediate firewall or blocking actions required

• Risk score and threat indicators do not warrant proactive blocking
• Monitor for changes in service exposure or threat indicator status
• Subnet-level abuse density remains low

Firewall Rule Recommendation: No specific rules generated at this time. Standard rate limiting and connection logging recommended if monitoring this IP range.

## Intelligence Conclusions

IP 102.129.51.138 presents low threat risk. The absence of open services, zero blacklist entries, and no persistent malicious activity supports current low-risk classification. The subnet (102.129.51.0/24) shows moderate abuse density with 1 high-risk neighbor identified for potential correlation. No immediate defensive action required beyond standard logging and monitoring protocols.

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Note: This intelligence is based on available signal data. Continuous monitoring recommended for emerging threat indicators.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.