87.78.53.97
# IP INTELLIGENCE BRIEFING: 87.78.53.97/32
Classification: LOW RISK
Date: Current Analysis Cycle
Analyst: IPDebrief Intelligence Team
## Executive Summary
IP address 87.78.53.97/32 presents a low-risk profile with a risk score of 25/100. The IP is registered to NetCologne infrastructure in Cologne, Germany, and is classified as a residential dial-in connection (NC-DIAL-IN-POOL). No active threat indicators, blacklist listings, or malicious campaign associations were detected.
## Infrastructure Profile
| Attribute | Value |
|---|---|
| **IP Address** | 87.78.53.97/32 |
| **ASN** | 8422 |
| **Organization** | Administrator Contact NetCologne |
| **Network Name** | NC-DIAL-IN-POOL |
| **CIDR Block** | 87.78.0.0/19 |
| **Country** | Germany (DE) |
| **City** | D-50829 Koeln |
| **RIR** | RIPE |
| **Registration Date** | Not Available |
## Threat Assessment
Risk Score: 25 (Low Risk)
Threat Indicators: None
Blacklist Status: Not listed (0/0 DNSBL listings)
Known Campaigns: None
Campaign Likelihood: Not applicable
Threat Indicators Verified:
- Not a Tor exit node
- Not a known attacker IP
- Not a spam source
- No proxy or VPN characteristics detected
- No hosting or CDN services identified
## Network Services & DNS
DNS Resolution:
- PTR Hostname: xdsl-87-78-53-97.nc.de
- Forward Resolution: Confirmed
- Domain: nc.de
Service Detection:
- Open Ports: None detected
- TLS Certificate: None
- HTTP Banner: None
- Service Purpose: Firewalled / No Services
## Neighborhood Analysis
Subnet: 87.78.53.97/24
Abuse Density: 0%
Classification: Clean
Total Siblings: 1
Active Siblings: 0
Threat Siblings: 0
No neighboring IPs in the /24 subnet exhibit malicious behavior or elevated risk scores.
## Relationship Graph
The IP maintains DNS associations with hostname xdsl-87-78-53-97.nc.de and network associations with NC-DIAL-IN-POOL. No additional organizational or certificate relationships identified.
## Observation History
Total Observations: 16
Recent Activity Period: July 23, 2026
Historical Signals:
- Ownership and network classification signals remain stable
- No ownership changes detected
- No persistent malicious activity observed
- Abuse density signals consistently report clean classification
## Recommended Actions
Risk Score: 25 (Low Risk)
Recommendation: No blocking or mitigation actions required at this time. The IP presents standard residential infrastructure behavior with no immediate threat indicators.
Firewall Rules: Not recommended
---
End of Briefing
*This intelligence briefing is based on data from IPDebrief threat intelligence platform. All findings are derived from observed network signals and reputation data.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Administrator Contact NetCologne |
| ASN | AS8422 |
| Network Name | NC-DIAL-IN-POOL |
| CIDR Block | 87.78.0.0/19 |
| RIR | RIPE |
| Country | DE |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | xdsl-87-78-53-97.nc.de |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | xdsl-87-78-53-97.nc.de |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS8422 |
| Network Prefix | 87.78.0.0/15 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 28% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 17% | 2 | 3 |
| reputation | 8% | 1 | 2 |
| geolocation | 15% | 2 | 2 |
| Overall | 14% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-03 10:49:49 UTC |
| Last Seen | 2026-09-11 02:33:20 UTC |
| Profile Built | 2026-09-11 03:18:01 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 31 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 87.78.53.97
Who owns the IP address 87.78.53.97?
87.78.53.97 is registered to Administrator Contact NetCologne. The address falls within the 87.78.0.0/19 network block. Registration is held at RIPE.
Where is 87.78.53.97 located?
Geolocation data places 87.78.53.97 in Cologne, North Rhine-Westphalia, Germany. The local time zone is Europe/Berlin. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 87.78.53.97 malicious or safe?
87.78.53.97 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 87.78.53.97?
The reverse DNS (PTR) record for 87.78.53.97 is xdsl-87-78-53-97.nc.de. This hostname is forward-confirmed, meaning it resolves back to the same address.