217.255.243.241📋 Copy

# IP Intelligence Briefing: 217.255.243.241/32

Classification: Residential Mobile IP / Low Risk

Date of Analysis: July 29, 2026

Risk Score: 25/100 (Low Risk)

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## Executive Summary

IP address 217.255.243.241 is a residential mobile endpoint assigned to Deutsche Telekom AG's residential network (ASN 3320). The address is dynamically allocated via the t-ipconnect.de DNS infrastructure and is currently operating in Hagen, North Rhine-Westphalia, Germany. While classified as low risk overall, the IP has been listed on one of eight DNSBL checks, indicating potential temporary abuse activity. No active threat indicators or known malicious campaigns are associated with this address.

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## Technical Profile

Network Infrastructure:

• ASN: 3320 (DTAG-NIC)
• Organization: DTAG-DIAL17 (Deutsche Telekom)
• CIDR Block: 217.246.0.0/15
• Geolocation: Hagen, North Rhine-Westphalia, Germany (51.17°N, 10.45°E)
• Mobile Carrier: Telekom / Deutsche Telekom AG (MCC 262, MNC 01)
• Connection Type: LTE/5G Mobile Network

DNS Resolution:

• PTR Hostname: pd9fff3f1.dip0.t-ipconnect.de
• Domain: t-ipconnect.de
• Forward Resolution: Confirmed (1 hostname)
• Email Authentication: No SPF or DMARC records detected

Network Services:

• Open Ports: None detected (firewalled/no services)
• TLS/Certificates: None
• HTTP Services: None

Control Plane Status:

• BGP Prefix: 217.224.0.0/11
• Route Stability: False (isRouteStable: false)
• RPKI Status: Not validated
• DNSSEC: Valid

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## Threat Assessment

Current Threat Indicators:

• Abuse Confidence Score: Not applicable
• Blacklist Status: Listed on 1 of 8 DNSBL feeds
• Known Attacker: False
• Spam Source: False
• Tor Exit Node: False
• Known Campaigns: None

Historical Activity (19 observations):

• DNSBL Listings: Recently flagged on one blacklist with maximum severity rating of "high"
• Port Scanning: Evidence of port scanning activity observed
• Ownership Changes: None (0 changes)
• Threat Persistence: Not persistently malicious

Risk Evolution:

• No persistent threat pattern observed
• Recent DNSBL listing suggests isolated abuse event
• Mobile residential classification indicates dynamic IP assignment typical for consumer broadband

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## Network Context

Subnet Analysis (217.255.243.0/24):

• Abuse Density: 0%
• Total Sibling IPs: 0
• Active Sibling IPs: 0
• High/Medium/Low Risk Neighbors: None

Relationship Graph:

• Same Network References: DTAG-DIAL17 (3 instances)
• DNS Associations: pd9fff3f1.dip0.t-ipconnect.de (3 instances)
• External Entity Links: None

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## Recommended Actions

Immediate:

• No immediate blocking recommended based on low overall risk score (25/100)
• Monitor for recurrence of blacklist listings

Firewall Policy:

• Standard residential IP handling applies
• No specific firewall rules generated
• Consider rate limiting if connection attempts observed

Investigation Triggers:

• If this IP initiates repeated connection attempts despite low risk classification
• If additional DNSBL listings appear
• If threat indicators emerge in future observations

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## Intelligence Notes

This IP represents typical Deutsche Telekom residential mobile endpoint behavior. The single DNSBL listing requires monitoring but does not indicate persistent malicious activity. The absence of open ports and lack of threat indicators suggest the address is likely a compromised or misconfigured consumer endpoint rather than an organized attack infrastructure.

Confidence Level: Moderate

Data Sources: IPDebrief profile, DNSBL feeds, network reconnaissance, historical signal analysis

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Prepared by: IPDebrief Threat Intelligence System

Classification: Unrestricted / SOC Intelligence

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