216.151.137.192📋 Copy

# INTELLIGENCE BRIEFING: 216.151.137.192/32

Classification: Moderate Risk | Date: Current Intelligence Cycle

IP Address: 216.151.137.192

ASN: 13445 (Cisco Webex LLC)

Location: New York, NY, US

Subnet: 216.151.137.0/24

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## EXECUTIVE SUMMARY

Target IP 216.151.137.192 operates on Cisco Webex infrastructure (ASN 13445) in New York. Current risk assessment indicates moderate risk (score: 40) driven by neighborhood context rather than direct malicious indicators. The IP presents no active services, no known threat indicators, and no blacklisting. Operational posture is defensive (firewalled/no services).

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## OWNERSHIP & INFRASTRUCTURE

Control plane analysis confirms operator score of 0.2174 (labeled "Minimal"). The IP is not classified as cloud, CDN, VPN, proxy, hosting, or mobile infrastructure.

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## THREAT ASSESSMENT

Direct Indicators:

• Blacklist Count: 0
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No
• Abuse Confidence Score: Not available
• Known Campaigns: None

DNSBL Status: Listed on 1 of 8 monitored lists.

Network Services: No open ports detected. No TLS certificates, HTTP titles, or server banners identified. DNS resolution shows no forward hostnames or PTR records.

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## GEOLOCATION & VALIDATION

• Country: US (US-NY)
• City: New York
• GeoValidation: ICMP blocked—unable to validate distance/RTT
• Distance from probe origin: 7,625.7 km
• GeoConsensus: Validated across 2 sources

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## NEIGHBORHOOD ANALYSIS

Subnet 216.151.137.0/24 contains 256 total sibling IPs with 100 active. Risk distribution:

• High Risk: 0
• Medium Risk: 51
• Low Risk: 49

Abuse density score: 0. Inherited risk from neighborhood context: 40. Neighbor IP risk scores range from 25-49, indicating mixed operational posture within the /24 block.

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## OBSERVATION HISTORY

Historical monitoring shows 50 observations with consistent "Minimal" operator scores (0) across recent timeframes (June 23-24, 2026). No threat persistence detected. Threat observation count: 1. The IP is not classified as persistently malicious.

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## RELATIONSHIP GRAPH

500 relationships identified, predominantly "Same Network" type (CS-1711 network prefix). No hostname, organization, or certificate relationships beyond network-level associations.

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## RECOMMENDED ACTIONS

Firewall Policy: Monitor or allow based on organizational trust of Cisco Webex services. No blocking required absent specific threat correlation.

SOC Monitoring: Track for unusual outbound patterns from this IP. Standard logging recommended.

Threat Intel Correlation: Review any DNSBL entries for this IP. Investigate if the single blacklist listing aligns with current threat patterns.

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## RISK RATING: MODERATE (40/100)

Primary Risk Factor: Neighborhood context within Cisco Webex infrastructure block.

Action Required: Standard monitoring. No immediate blocking recommended.

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