37.132.88.143📋 Copy

# IPDEBRIEF THREAT INTELLIGENCE BRIEFING

Target IP: 37.132.88.143/32

Date: 2026-07-23

Classification: LOW RISK - MOBILE CARRIER INFRASTRUCTURE

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## EXECUTIVE SUMMARY

IP address 37.132.88.143 is identified as a mobile carrier infrastructure endpoint belonging to JAZZTEL-MOBILE (AS12479) in Spain. Risk assessment indicates low threat profile with no active malicious indicators. The IP is associated with Orange Espagne SA mobile network and is currently firewalled with no open services.

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## OWNERSHIP & NETWORK CLASSIFICATION

• ASN: 12479 (JAZZTEL RIPE)
• Organization: JAZZTEL-MOBILE
• Network Block: 37.132.0.0/16
• Country: Spain (ES)
• Region: Andalusia, El Arahal
• Provider: Orange Espagne SA (MCC: 214, MNC: 03)
• Classification: Mobile Carrier Infrastructure

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## RISK ASSESSMENT

• Overall Risk Score: 25/100 (Low Risk)
• Reputation: Low Risk
• Abuse Confidence Score: Not applicable
• Threat Indicators: None detected
• Blacklist Count: 0
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No

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## NETWORK SERVICES

• Open Ports: None detected
• Service Status: Firewalled / No Services
• TLS Certificate: None
• HTTP Banner: None
• CDN/Proxy/VPN: No (Confirmed mobile carrier infrastructure)

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## DNS & RESOLUTION

• PTR Hostname: 143.88.132.37.dynamic.jazztel.es
• Forward Resolution: 143.88.132.37.dynamic.jazztel.es (Confirmed)
• Domain: jazztel.es
• Forward Resolution Count: 1
• DNSBL Listings: 1 of 8 total lists

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## THREAT INTELLIGENCE

• Threat Persistence Days: 0
• Threat Observation Count: 0
• Known Campaigns: None
• Persistent Malicious Activity: No
• Campaign Likelihood: Not applicable

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## OBSERVATION HISTORY (17 Observations)

Recent signal observations confirm:

• Ownership consistently attributed to JAZZTEL RIPE
• Geolocation stable: Spain (ES)
• No ownership changes detected
• No threat persistence observed
• All observations indicate legitimate mobile carrier infrastructure

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## RELATIONSHIP GRAPH

• DNS Associations: 143.88.132.37.dynamic.jazztel.es
• Network Associations: JAZZTEL-MOBILE (multiple confirmed)
• Related Hostnames: Dynamic Jazztel mobile endpoint

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## NEIGHBORHOOD ANALYSIS (37.132.88.0/24)

• Abuse Density: 0%
• Total Siblings: 0 identified
• Active Threat Siblings: 0
• Risk Distribution: No elevated risk neighbors detected
• Subnet Classification: Clean

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## SECURITY RECOMMENDATIONS

Based on risk profile and infrastructure classification:

1. Allow: Mobile carrier traffic from this IP range is generally legitimate

2. Monitor: Verify traffic patterns are consistent with mobile carrier behavior

3. Block: Not recommended - no malicious indicators present

4. Firewall Rules: No specific blocking required; standard carrier traffic policies apply

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## ACTIONABLE INTELLIGENCE

SOC Analyst Decision: This IP represents legitimate mobile carrier infrastructure. No immediate threat action required. Continue monitoring for behavioral anomalies if traffic patterns deviate from expected mobile carrier traffic patterns.

Risk Level: LOW (25/100)

Threat Category: None

Recommended Action: Monitor / Allow with standard carrier policies

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