216.151.138.17📋 Copy

# IP Intelligence Briefing: 216.151.138.17

## Executive Summary

The target IP 216.151.138.17 is a Cisco Webex LLC infrastructure address located in San Jose, California. Current risk assessment indicates moderate risk (score: 40) with no active threat indicators. The subnet demonstrates elevated abuse density requiring monitoring.

## Ownership and Infrastructure

• Organization: Cisco Webex LLC (ASN: 13445)
• Network: 216.151.128.0/20 (origin BGP prefix)
• Location: San Jose, CA, US
• Services: Firewalled / No Services Detected
• Open Ports: None identified

## Risk Profile

• Risk Score: 40 (Moderate Risk)
• Abuse Confidence: Not applicable (no active indicators)
• Blacklist Status: Listed on 2 of 8 DNSBLs
• Known Attacker: No
• Tor Exit Node: No
• Campaign Affiliation: None identified

## Network Context

The /24 subnet (216.151.138.0/24) shows elevated abuse density with 256 total siblings and 151 active. Neighbor risk distribution indicates 100 medium-risk addresses. This suggests the subnet is a legitimate Cisco Webex infrastructure block with normal operational variance.

## Historical Signals

Forty-two observations collected since early June 2026. Recent signal patterns show consistent "Minimal" operator scoring (0.0) across multiple time windows. No escalation in threat activity detected.

## Threat Indicators

No active threat indicators present:

• Zero honeypot hits
• Zero enumeration strikes
• Zero WAF violations
• No associated threat feeds or campaigns

## Recommended Actions

Given the moderate risk score and subnet abuse density, the following controls are recommended:

Immediate:

```bash

iptables -A INPUT -s 216.151.138.17 -j DROP

```

Cloud Platform Rules:

• Cloudflare WAF: Block 216.151.138.17
• AWS WAF: Add 216.151.138.17/32 to blocklist
• pfSense: 216.151.138.17/32

## Intelligence Assessment

This IP represents Cisco Webex legitimate infrastructure. While the risk score of 40 warrants blocking based on automated scoring, the absence of active threat indicators suggests this may be a false positive or precautionary measure. The subnet's abuse density reflects typical enterprise cloud infrastructure patterns.

Recommended SOC Action: Monitor for actual malicious activity. Block at perimeter level if score threshold policies require, but prioritize traffic analysis to confirm no genuine threats from this source.

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