89.153.136.156
IP Intelligence Briefing: 89.153.136.156
Date: 2026-06-11
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Ownership:
- ASN: 2860 (AS2860-MNT)
- Netname: NOS (Registered to Portuguese ISP, netcabo.pt)
- RIR: RIPE
- Geolocation:
- Country: Portugal (PT)
- City: Lisbon
- Coordinates: Unavailable
- Timezone: Europe/Lisbon
- Threat Indicators:
- No known malicious activity, blacklists, or campaigns.
- Not a Tor exit node, spam source, or attacker IP.
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**2. Network Behavior**
- Network Role: Firewalled / No Services
- No open ports or TLS/HTTP services detected.
- No CDN, cloud, or mobile carrier associations.
- DNS:
- PTR hostname: `a89-153-136-156.cpe.netcabo.pt`
- SPF and DMARC records present (email security configured).
- Subnet:
- /24 subnet: `89.153.136.0/24`
- Subnet abuse density: 0% (clean).
- No neighboring IPs identified.
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**3. Temporal Observations**
- Recent Activity (30 Days):
- No persistent threat signals.
- Low-confidence geolocation and routing data.
- Minimal DNS resolution events (1 forward lookup).
- Ownership Stability:
- No changes in ASN or network ownership.
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**4. Relationships & Context**
- DNS Associations:
- Linked to `a89-153-136-156.cpe.netcabo.pt` (same hostname repeated).
- Network Affiliations:
- Part of RIPE-managed network "NOS" (Netcabo, Portugal).
- Threat Feeds:
- Not listed in 8 DNSBLs (0/8 lists).
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**5. Recommendations**
- Monitoring: Track for unexpected DNS changes or subnet activity.
- Geolocation Verification: Cross-check with active probes for accuracy.
- ISP Collaboration: Monitor Netcabo.pt for broader network anomalies.
Conclusion: This IP appears legitimate, associated with a Portuguese ISP, and shows no malicious indicators. No immediate action required, but ongoing monitoring is advised.
Source: IPDebrief Threat Intelligence Platform
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | AS2860-MNT |
| ASN | AS2860 |
| Network Name | NOS |
| CIDR Block | 89.153.32.0/19 |
| RIR | RIPE |
| Country | PT |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | a89-153-136-156.cpe.netcabo.pt |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | a89-153-136-156.cpe.netcabo.pt |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| 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 | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 13% | 1 | 1 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 30% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 13% | 1 | 1 |
| Overall | 14% | 6 | 7 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-26 06:51:51 UTC |
| Last Seen | 2026-06-11 04:24:07 UTC |
| Profile Built | 2026-06-11 04:34:13 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 22 |
Full dossier details are available via our API.