81.104.86.237
81.104.86.237 is an IPv4 address announced by AS5089, with approximate network location Dunstable, United Kingdom. Its reverse DNS name is duns-08-b2-v4wan-170018-cust1772.vm32.cable.virginm.net. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | AS5089-MNT |
| ASN | AS5089 |
| Network Name | VMCBBUK |
| CIDR Block | 81.104.80.0/20 |
| RIR | RIPE |
| Network registration country | GB |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | duns-08-b2-v4wan-170018-cust1772.vm32.cable.virginm.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | duns-08-b2-v4wan-170018-cust1772.vm32.cable.virginm.net |
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 | Unknown |
| 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 | AS5089 |
| Network Prefix | 81.104.0.0/15 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 35% | 2 | 2 |
| Overall | 18% | 5 | 5 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-10-04 13:33:33 UTC |
| Last Seen | 2026-10-08 00:39:06 UTC |
| Profile Built | 2026-11-12 11:20:10 UTC |
| Data Freshness | Stale |
| Signal Types | 20 |
| Total Observations | 20 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 81.104.86.237
Who owns the IP address 81.104.86.237?
81.104.86.237 is registered to AS5089-MNT. The address falls within the 81.104.80.0/20 network block. Registration is held at RIPE.
Where is 81.104.86.237 located?
Geolocation data places 81.104.86.237 in Dunstable, England, United Kingdom. The local time zone is Europe/London. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 81.104.86.237 malicious or safe?
81.104.86.237 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 81.104.86.237?
The reverse DNS (PTR) record for 81.104.86.237 is duns-08-b2-v4wan-170018-cust1772.vm32.cable.virginm.net. This hostname is forward-confirmed, meaning it resolves back to the same address.