# 102.129.51.138 — IP Intelligence Summary 102.129.51.138 is an IPv4 address operated by Jacobus De Beer (AS327991), geolocated to Vanderbijlpark, South Africa. Its reverse DNS name is ms-51-138.megasurf.co.za. As of August 30, 2026, IPDebrief rates it Moderate Risk (40/100); no anonymizing service was detected. - Canonical page: https://ipdebrief.com/102.129.51.138 - Last updated: 2026-08-30 ## Ownership - Organization: Jacobus De Beer - Network name: 102.129.51.0 - 102.129.51.255 - Allocated block: 102.129.51.0/24 - ASN: AS327991 (https://ipdebrief.com/asn/327991) - Regional registry: AFRINIC ## Location - City: Vanderbijlpark - Region: Gauteng - Country: South Africa - Time zone: Africa/Johannesburg ## Network classification - Infrastructure type: — - Datacenter / hosting: no - Residential: no - Mobile: no - Anycast: no - Tor exit node: no - VPN: no - Proxy: no ## Risk assessment - Assessment: Moderate Risk (40/100) - Blocklist listings: 0 - Suspicious activity indicators: no - Spam source: no ## Reverse DNS - ms-51-138.megasurf.co.za - Forward-confirmed: yes ## Analyst narrative \# 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. \--- **Note:** This intelligence is based on available signal data. Continuous monitoring recommended for emerging threat indicators. ## Nearby addresses - 102.129.51.2 (https://ipdebrief.com/102.129.51.2) - 102.129.51.9 (https://ipdebrief.com/102.129.51.9) - 102.129.51.10 (https://ipdebrief.com/102.129.51.10) - 102.129.51.13 (https://ipdebrief.com/102.129.51.13) - 102.129.51.15 (https://ipdebrief.com/102.129.51.15) - 102.129.51.16 (https://ipdebrief.com/102.129.51.16) - 102.129.51.22 (https://ipdebrief.com/102.129.51.22) - 102.129.51.23 (https://ipdebrief.com/102.129.51.23) - 102.129.51.25 (https://ipdebrief.com/102.129.51.25) - 102.129.51.26 (https://ipdebrief.com/102.129.51.26) - 102.129.51.36 (https://ipdebrief.com/102.129.51.36) - 102.129.51.37 (https://ipdebrief.com/102.129.51.37) --- Source: IPDebrief, "102.129.51.138 IP intelligence", https://ipdebrief.com/102.129.51.138, updated 2026-08-30. Assessments are probabilistic.