217.121.3.10📋 Copy

## IP Intelligence Briefing: 217.121.3.10

Executive Summary

IP 217.121.3.10 is a low-risk, legitimate residential mobile carrier endpoint located in Zwaanshoek, Netherlands. The address demonstrates no malicious activity, maintains a clean reputation profile, and operates within a benign neighborhood subnet.

Ownership and Network Context

• Organization: VODAFONEZIGGO IP AUTHORITY (ASN 33915)
• Country: Netherlands (NL)
• Region: North Holland
• City: Zwaanshoek
• Network Classification: Mobile Carrier / Cable connection
• BGP Prefix: 217.120.0.0/15
• Registration: RIR RIPE

Risk Assessment

• Overall Risk Score: 0 (Low Risk)
• Provider/Authority Scores: 0
• Abuse Confidence Score: Not applicable
• Blacklist Count: 0
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No

Technical Profile

• Open Ports/Services: None detected (firewalled/no services)
• DNS Resolution: 217-121-3-10.cable.dynamic.v4.ziggo.nl
• Forward Resolution: Confirmed (1 hostname)
• Email Authentication: SPF and DMARC records present
• TLS Certificates: None
• HTTP Services: None detected

Neighborhood Analysis

• Subnet: 217.121.3.0/24
• Abuse Density: 0 (Clean)
• Classification: Clean
• Active Siblings: 0
• Threat Siblings: 0

Historical Observations

Analysis of 23 observations reveals consistent low-risk behavior:

• Operator Score: ~0.2174 (Minimal)
• Geo Plausibility: Validated (134.9 km distance, 123-132 ms RTT)
• No significant changes in risk profile over observation period
• Threat persistence days: 0
• Is Persistently Malicious: No

Relationships

The IP maintains 32 relationships, primarily:

• DNS associations to ziggo.nl dynamic hostnames
• Network associations to ZIGGO-CM network
• No associations to known malicious entities or campaigns

Recommended Actions

No blocking recommended. This IP demonstrates:

• No open services or ports
• No threat indicators
• Clean neighborhood reputation
• Legitimate carrier infrastructure profile

Suggested Firewall Rules: None required. Allow traffic if inbound connections are expected from this mobile carrier range.

Intelligence Assessment

This endpoint represents standard residential/mobile carrier infrastructure from Ziggo/Vodafone Netherlands. The absence of services, clean neighborhood data, and consistent historical observations indicate normal consumer or business mobile endpoint behavior. No defensive measures beyond standard monitoring are warranted.

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