176.237.231.64📋 Copy

# IP INTELLIGENCE BRIEFING

## Target: 176.237.231.64/32

Classification: Low Risk

Date: 2026-07-30

Analyst: SOC Intelligence

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EXECUTIVE SUMMARY

The IP address 176.237.231.64/32 is a residential or fixed infrastructure endpoint assigned to Turkcell Iletisim Hizmetleri A.S., a major Turkish telecommunications provider (ASN 16135). Risk assessment indicates Low Risk status with no active threat indicators, no blacklist listings, and no open services. The IP has been observed with stable ownership characteristics and demonstrates no persistent malicious behavior patterns.

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OWNERSHIP & INFRASTRUCTURE

• Organization: Turkcell Iletisim Hizmetleri A.S. (Turkey)
• ASN: 16135
• CIDR Block: 176.237.0.0/16
• Network Registration: TR-TURKCELL-20111201
• RIR: RIPE
• Registration Date: 2011-12-01
• Geolocation: Istanbul, Bursa Province, Turkey (TR)
• Timezone: Europe/Istanbul

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RISK ASSESSMENT

Threat Indicators: None

Blacklist Count: 0

Abuse Confidence Score: Not available

Known Campaigns: None

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NETWORK SERVICES

• Open Ports: None detected
• HTTP Services: None
• TLS Certificates: None
• DNS Records: No PTR record; No forward resolution
• Email Authentication: No SPF/DMARC records
• Service Classification: Firewalled / No Services

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CONTROL PLANE ANALYSIS

• BGP Prefix: 176.237.224.0/20
• Origin ASN: 16135
• Route Stability: Route changes observed in past 30 days
• RPKI State: Not evaluated
• IRR Consistency: Not evaluated
• DNSSEC Validation: Valid
• DNSBL Listings: 0 / 8 total lists

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OBSERVATION HISTORY

Total observations recorded: 14

Recent Signals (2026-07-30):

• 06:17:25 UTC - Ownership stability signal (confidence: 85%)
• 06:14:12 UTC - DNSBL listing check (8 total lists, 0 listed)
• 06:14:10 UTC - DNSSEC validation confirmed
• 06:14:10 UTC - ASN verification (16135 - TURKCELL-AS)
• 06:14:10 UTC - PTR record check (none)

Temporal Analysis:

• Ownership Changes: 0
• Average Ownership Days: Not applicable
• Threat Persistence Days: 0
• Threat Observation Count: 1
• Is Persistently Malicious: False

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NEIGHBORHOOD ANALYSIS

Subnet: 176.237.231.64/24

• Neighbor Count: 0
• Abuse Density: 0
• High Risk Neighbors: 0
• Medium Risk Neighbors: 0
• Low Risk Neighbors: 0
• Threat Siblings: 0

Assessment: No neighboring IPs detected in the /24 subnet. This may indicate limited scanning coverage or sparse neighbor database coverage for this subnet.

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RELATIONSHIP GRAPH

• Same Network Relationships: 2 entries (TR-TURKCELL-20111201)
• External Relationships: None detected
• Associated Hostnames: None
• Associated Certificates: None
• Correlated IPs: 0

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TRACEROUTE ANALYSIS

• Hop Count: 30
• First Hop RTT: 0.1ms
• Last Hop RTT: 134.4ms
• Timed Out Hops: 21
• Transit Networks: Comcast

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BEHAVIORAL ANALYTICS

• Honeypot Hits: 0
• Enumeration Strikes: 0
• WAF Violations: 0
• Total Incidents: 0

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SECURITY RECOMMENDATIONS

Based on the low-risk profile, no immediate firewall or blocking actions are required. However, maintain monitoring for:

1. Service Changes: No open ports detected; monitor for service enumeration

2. Route Stability: Route changes observed in 30-day window - monitor for BGP anomalies

3. DNSSEC Validation: Valid - positive security control in place

Recommended Actions: None required for current risk profile. Standard monitoring practices applicable.

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END OF BRIEFING

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