216.151.130.204📋 Copy

# IP INTELLIGENCE BRIEFING

Target: 216.151.130.204/32

Date: June 24, 2026

Classification: MODERATE RISK

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## EXECUTIVE SUMMARY

IP 216.151.130.204 is a Cisco Webex LLC infrastructure address with a moderate risk score of 40/100. While the IP itself shows no direct threat indicators, it resides within a high-abuse density subnet (216.151.130.0/24) classified as "high_abuse" with an inherited risk score of 40. No direct malicious activity was observed, but neighborhood context warrants defensive posture.

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## OWNERSHIP & INFRASTRUCTURE

• Organization: Cisco Webex LLC (ASN 13445)
• Location: San Jose, CA, US
• Network Block: 216.151.128.0/20 (BGP Prefix)
• Registration: RIR-ARIN
• Classification: Provider/Infrastructure network
• Service Status: Firewalled/No Services Detected

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## THREAT ASSESSMENT

Current Risk Score: 40/100 (Moderate)

Operator Score: Minimal (0.1304)

Threat Indicators: None detected

Blacklist Status: Listed on 1 of 8 DNSBL lists

Campaign Association: None identified

Threat Classification Flags:

• Not a known attacker
• Not a spam source
• Not a Tor exit node
• Not a proxy service
• Not hosting infrastructure
• No open ports identified

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## NEIGHBORHOOD ANALYSIS

Subnet: 216.151.130.0/24

Abuse Density: HIGH

Risk Distribution:

• High Risk: 0 IPs
• Medium Risk: 16 IPs
• Low Risk: 84 IPs
• Active Siblings: 131/256

Assessment: Despite the target IP's clean profile, the /24 subnet shows elevated abuse density. The high number of medium-risk neighbors suggests potential infrastructure compromise or shared network resources.

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## OBSERVATION HISTORY

• Total Observations: 46
• Recent ASN Attribution: Consistent attribution to Cisco Webex LLC (216.151.128.0/19)
• Operator Score Trend: Consistently labeled "Minimal" across recent observations
• Threat Persistence: 0 days (no persistent malicious activity)

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## RELATIONSHIP MAPPING

• Total Relationships: 141
• Primary Association: Same Network (CS-1711 network)
• Network Links: Multiple connections to shared network resources

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## RECOMMENDED ACTIONS

Risk Level: MODERATE (Block with caution)

Firewall Recommendations:

• iptables: `iptables -A INPUT -s 216.151.130.204 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 216.151.130.204 drop`
• nginx: `deny 216.151.130.204;`
• pfSense: `216.151.130.204/32`
• Cloudflare WAF: Block IP with expression `ip.src eq 216.151.130.204`
• AWS WAF: Add IP 216.151.130.204/32 to block list

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## ANALYST NOTES

This IP belongs to legitimate Cisco Webex infrastructure. The moderate risk score and high-abuse neighborhood classification suggest defensive blocking is prudent despite the lack of direct threat indicators. Monitor for any changes in neighborhood abuse patterns or emergence of threat indicators. The DNSBL listing (1 of 8) warrants periodic review.

Priority: LOW-MEDIUM

Action Required: BLOCK with monitoring

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