85.147.137.171
85.147.137.171 is an IPv4 address announced by AS33915, with approximate network location Koog aan de Zaan, Netherlands. It belongs to a mobile network with reverse DNS name 85-147-137-171.cable.dynamic.v4.ziggo.nl. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | VODAFONEZIGGO IP AUTHORITY |
| ASN | AS33915 |
| Network Name | ZIGGO-CM |
| CIDR Block | 85.147.128.0/20 |
| RIR | RIPE |
| Network registration country | NL |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 85-147-137-171.cable.dynamic.v4.ziggo.nl |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 85-147-137-171.cable.dynamic.v4.ziggo.nl |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | AS33915 |
| Network Prefix | 85.147.128.0/17 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 17% | 2 | 3 |
| routing | 17% | 2 | 3 |
| services | 12% | 2 | 2 |
| ownership | 19% | 3 | 4 |
| reputation | 8% | 1 | 2 |
| geolocation | 17% | 2 | 3 |
| Overall | 15% | 12 | 17 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-12 08:52:18 UTC |
| Last Seen | 2026-10-06 10:03:17 UTC |
| Profile Built | 2026-11-12 04:49:24 UTC |
| Data Freshness | Stale |
| Signal Types | 25 |
| Total Observations | 26 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 85.147.137.171
Who owns the IP address 85.147.137.171?
85.147.137.171 is registered to VODAFONEZIGGO IP AUTHORITY. The address falls within the 85.147.128.0/20 network block. Registration is held at RIPE.
Where is 85.147.137.171 located?
Geolocation data places 85.147.137.171 in Koog aan de Zaan, North Holland, Netherlands. The local time zone is Europe/Amsterdam. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 85.147.137.171 malicious or safe?
85.147.137.171 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 85.147.137.171?
The reverse DNS (PTR) record for 85.147.137.171 is 85-147-137-171.cable.dynamic.v4.ziggo.nl. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 85.147.137.171 a VPN, proxy, or data center address?
85.147.137.171 is classified as a mobile network based on network ownership and behavioural analysis.