31.56.58.122📋 Copy

# IP INTELLIGENCE BRIEFING

Target: 31.56.58.122/32

Classification: Moderate Risk

Report Date: 2026-07-27

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## EXECUTIVE SUMMARY

IP 31.56.58.122 is assigned to individual Mathis AGOSTINI under ASN 215599 (RIPE registry) with a moderate risk score of 50. The address shows no active threat indicators, but is listed on 2 of 8 DNS blacklists. Network infrastructure analysis indicates the IP is firewalled with no active services. Historical data shows 19 observations with no persistent malicious activity detected.

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## OWNERSHIP & GEOLOCATION

• Organization: Mathis AGOSTINI
• Network: zkilly-subnet-v4-01 (31.56.58.0/24)
• ASN: 215599
• Country: France (FR)
• Region: Île-de-France
• City: Saint-Denis
• RIR: RIPE
• Registration: Individual assignment

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## THREAT ASSESSMENT

Risk Factors:

• Listed on 2 DNS blacklists
• Neighbor subnet shows 1 threat sibling (31.56.58.122/24)
• Subnet abuse density: 0.3333 (moderate)

Mitigating Factors:

• No open ports detected
• No active threat indicators
• No persistent malicious activity in history
• Neighbor risk distribution: 1 low risk, 0 medium, 0 high

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## NETWORK BEHAVIOR

• Service Status: Firewalled / No Services
• Open Ports: None detected
• TLS/Certificates: Not applicable
• HTTP Services: Not detected
• DNS PTR: 122.as215599.net
• Forward Resolution: 122.as215599.net (unconfirmed)

Control Plane:

• BGP Prefix: 31.56.58.0/24
• Route Stability: False
• DNSSEC: Valid
• RPKI State: Not assessed

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## NEIGHBORHOOD ANALYSIS

Subnet: 31.56.58.0/24

Subnet Statistics:

• Total Siblings: 3
• Active Siblings: 0
• Threat Siblings: 1
• Inherited Risk: 2
• Classification: Mostly Clean

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## OBSERVATION HISTORY

Total Observations: 19

Recent Signals (2026-07-27):

• Ownership and ASN signals confirmed with 95-90% confidence
• Geolocation inference: Saint-Denis, France (750km accuracy radius)
• Subnet abuse density confirmed at 0.3333
• No ownership changes detected

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## RELATIONSHIP MAPPING

• Network: zkilly-subnet-v4-01 (Same network relationships)
• DNS: 122.as215599.net (DNS association)

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## RECOMMENDED ACTIONS

Risk Score: 50 (Moderate)

Firewall Recommendations:

• iptables: `iptables -A INPUT -s 31.56.58.122 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 31.56.58.122 drop`
• nginx: `deny 31.56.58.122;`
• pfSense: Block 31.56.58.122/32
• Cloudflare WAF: Block rule with expression `ip.src eq 31.56.58.122`
• AWS WAF: Block IP 31.56.58.122/32

Decision Guidance:

• Block recommended based on moderate risk score and DNSBL listings
• No open services detected; blocking will not impact legitimate services
• Monitor for any changes in threat indicators or service activation

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## ANALYST NOTES

This IP represents a moderate-risk individual assignment with no active threat indicators. The moderate risk score (50) is primarily driven by DNS blacklist presence rather than confirmed malicious activity. The subnet shows minimal abuse activity overall. Blocking is recommended as a precautionary measure, but the IP should be monitored for any escalation in threat indicators or service activation.

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