31.104.161.77
31.104.161.77 is an IPv4 address announced by AS2856, with approximate network location Bracknell, United Kingdom. Its reverse DNS name is host31-104-161-77.range31-104.btcentralplus.com. As of October 10, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | BTnet Support |
| ASN | AS2856 |
| Network Name | BT-CENTRAL-PLUS |
| CIDR Block | 31.104.0.0/16 |
| RIR | RIPE |
| Network registration country | GB |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | host31-104-161-77.range31-104.btcentralplus.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | host31-104-161-77.range31-104.btcentralplus.com |
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 | AS2856 |
| Network Prefix | 31.104.0.0/16 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 49% | 2 | 5 |
| routing | 8% | 1 | 1 |
| services | 32% | 2 | 4 |
| ownership | 39% | 2 | 6 |
| reputation | 23% | 1 | 2 |
| geolocation | 22% | 2 | 2 |
| Overall | 29% | 10 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-06 17:19:57 UTC |
| Last Seen | 2026-11-13 17:21:24 UTC |
| Profile Built | 2026-10-10 11:42:39 UTC |
| Data Freshness | Live |
| Signal Types | 13 |
| Total Observations | 13 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 31.104.161.77
Who owns the IP address 31.104.161.77?
31.104.161.77 is registered to BTnet Support. The address falls within the 31.104.0.0/16 network block. Registration is held at RIPE.
Where is 31.104.161.77 located?
Geolocation data places 31.104.161.77 in Bracknell, 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 31.104.161.77 malicious or safe?
31.104.161.77 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 31.104.161.77?
The reverse DNS (PTR) record for 31.104.161.77 is host31-104-161-77.range31-104.btcentralplus.com. This hostname is forward-confirmed, meaning it resolves back to the same address.