# IP Intelligence Briefing: 102.129.54.71
Classification: Moderate Risk (Score: 40) | Date: 2026-06-22
---
## Executive Summary
IP address 102.129.54.71 is a residential subscriber IP assigned to Megasurf Wireless Internet CC (ASN: 327991) in Vanderbijlpark, Gauteng, South Africa. The address demonstrates moderate risk primarily due to subnet-level abuse density, with no direct threat indicators observed on the IP itself.
---
## Network Attribution
| Attribute | Value |
|---|---|
| **ASN** | 327991 |
| **Organization** | Jacobus De Beer / Megasurf Wireless Internet CC |
| **Location** | Vanderbijlpark, Gauteng, ZA |
| **CIDR Block** | 102.129.54.0/24 |
| **Service Type** | Residential ISP |
| **PTR Hostname** | ms-54-71.megasurf.co.za |
---
## Risk Assessment
Risk Score: 40/100 (Moderate)
Risk Factors:
- Subnet abuse density: 14.63% (0.1463)
- 6 threat siblings identified in /24 subnet
- 2 DNSBL listings across 8 total lists
- No direct threat indicators on target IP
Mitigating Factors:
- No known attack campaigns correlated
- No Tor exit node classification
- No known spam source designation
- Not classified as hosting/proxy/VPN infrastructure
---
## Neighborhood Analysis
The /24 subnet (102.129.54.0/24) contains 41 total sibling IPs with 7 currently active. Risk distribution within the subnet:
- High Risk: 3 IPs (scores: 40)
- Medium Risk: 27 IPs
- Low Risk: 12 IPs
Related IPs in subnet with matching risk scores: 102.129.54.11, 102.129.54.40
---
## Historical Observations
23 signal observations recorded. Key patterns:
- Consistent ASN 327991 attribution across observation period
- Subnet abuse density maintained at 0.1463
- Routing prefix stabilized at 102.129.48.0/20
- No ownership changes detected
- Threat persistence: 0 days (not persistently malicious)
---
## Threat Indicators
Direct Indicators: None observed
Indirect Context:
- Subnet-level abuse activity present
- 2 DNSBL listings (out of 8 total)
- No correlation with known APT campaigns or threat feeds
---
## Recommended Actions
Based on risk score of 40, the following firewall rules are recommended:
```bash
# iptables
iptables -A INPUT -s 102.129.54.71 -j DROP
# nftables
nft add rule inet filter input ip saddr 102.129.54.71 drop
# Cloudflare WAF
ip.src eq 102.129.54.71 β BLOCK
# AWS WAF
Addresses: 102.129.54.71/32
```
---
## Intelligence Narrative
The IP address 102.129.54.71 belongs to a residential broadband subscriber within a South African ISP infrastructure. While the IP itself shows no direct malicious activity, the subnet environment exhibits elevated abuse density (14.63%), suggesting this IP range has been associated with various low-level abusive activities in the past. The moderate risk score (40) reflects this contextual risk rather than direct threat attribution.
SOC teams may consider blocking this IP if network policies prohibit residential ISP addresses, or apply rate-limiting rules if allowing limited access is necessary. The subnet should be monitored for continued abuse patterns affecting adjacent IP ranges.
---
Source: IPDebrief Intelligence Platform
Analysis: Automated intelligence collection and correlation
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Jacobus De Beer |
| ASN | AS327991 |
| Network Name | 102.129.54.0 - 102.129.54.255 |
| CIDR Block | 102.129.54.0/24 |
| RIR | AFRINIC |
| Country | ZA |
| Abuse Contact | β |
π DNS Intelligence
| PTR | ms-54-71.megasurf.co.za |
| Forward Confirmed | Yes β FCrDNS verified |
| Forward Hostnames | ms-54-71.megasurf.co.za |
π DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 β Basic operator with some routing infrastructure |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 21% | 2 | 2 |
| routing | 25% | 3 | 3 |
| services | 8% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 17% | 1 | 2 |
| geolocation | 21% | 2 | 2 |
| Overall | 19% | 11 | 12 |
| Data Coherence | Consistent (100%) |
| Attribution | High (85%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-07 23:03:24 UTC |
| Last Seen | 2026-06-22 05:42:27 UTC |
| Profile Built | 2026-06-22 05:49:27 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 24 |
Full dossier details are available via our API.