87.123.245.110📋 Copy

# INTELLIGENCE BRIEFING: IP 87.123.245.110/32

Classification: Moderate Risk (Score: 40)

Report Date: 2026-07-23

Analyst: IPDebrief Threat Intelligence

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## EXECUTIVE SUMMARY

IP address 87.123.245.110 is a residential customer endpoint belonging to 1&1 Versatel GmbH (ASN: 8881) within the 87.123.216.0/21 CIDR block. The endpoint presents moderate risk (score 40/100) with no active threat indicators or malicious behavior observed. The IP is firewalled with no open services and maintains a stable operational posture.

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## OWNERSHIP & GELOCATION

Organization: 1&1 Versatel GmbH

Netname: VT-Customer

ASN: 8881

RIR: RIPE

CIDR Block: 87.123.216.0/21

Location: Nuremberg, Bavaria, Germany (DE)

Coordinates: 51.17°N, 10.45°E

Timezone: Europe/Berlin

GeoConsensus: True (1 source)

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## NETWORK CLASSIFICATION

Service Purpose: Firewalled / No Services

Open Ports: None detected

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## THREAT ASSESSMENT

Current Risk Level: Moderate (40/100)

Threat Indicators: None

• Blacklist Count: 0
• Known Attacker: False
• Spam Source: False
• Tor Exit Node: False
• Known Campaigns: None

DNSBL Status: Listed on 2 of 8 total lists (max severity: high)

Abuse Confidence: Not applicable (no active threats)

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## DNS & EMAIL REPUTATION

PTR Hostname: i577BF56E.versanet.de

Forward Resolution: Confirmed

Forward Hostname: i577BF56E.versanet.de

Hosted Domains: 0

Email Authentication:

• SPF: Configured
• DMARC: Not configured

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## CONTROL PLANE & ROUTING

Origin ASN: 8881

BGP Prefix: 87.123.240.0/21

Route Stability: Unstable (isRouteStable: false)

Route Changes (30d): 0

RPKI State: Not available

DNSSEC: Valid

Operator Score: 0.2609 (Basic)

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## NEIGHBORHOOD ANALYSIS (87.123.245.0/24)

Subnet Abuse Density: 0

Total Sibling IPs: 10

Risk Distribution: 5 Medium, 5 Low

Notable Neighbors:

• 87.123.245.3 (Risk: 40, Authority: 60)
• 87.123.245.10 (Risk: 40, Authority: 60)
• 87.123.245.13 (Risk: 40, Authority: 60)
• 87.123.245.20 (Risk: 0, Authority: 50)
• 87.123.245.100 (Risk: 0, Authority: 60)

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## OBSERVATION HISTORY (15 Records)

Most Recent Signal (2026-07-23 19:48:41):

• Organization: 1&1 Versatel GmbH
• Abuse Contact: abuse@1und1.net
• RIR: RIPE

Historical Signals Include:

• Geolocation updates (Nuremberg, Bavaria)
• DNS resolution confirmations
• DNSBL listing observations (8 total lists, 2 active listings)

Threat Persistence: 0 days (no persistent malicious activity)

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## RELATIONSHIPS

DNS Associations:

• i577BF56E.versanet.de (multiple entries)

Network Associations:

• VT-Customer network (87.123.216.0/21)

Correlated Entities: None identified

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## RECOMMENDED ACTIONS

Security Posture: Monitor

Block Recommendation: No (moderate risk, no active threats)

Firewall Rule: No action required (no open services)

Note: The IP is properly firewalled with no accessible services. The DNSBL listings (2 of 8) are informational and do not indicate active malicious behavior. The subnet shows moderate risk distribution (5 IPs at risk level 40), but the target IP itself presents no immediate threat.

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END OF BRIEFING

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