219.104.133.161
🏢 Ownership & Registration
| Organization | Japan Network Information Center |
| ASN | AS2527 |
| Network Name | SO-NET |
| CIDR Block | 219.104.128.0/19 |
| RIR | APNIC |
| Country | JP |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | madb6885a1.ap.nuro.jp |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | madb6885a1.ap.nuro.jp |
🔐 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 | 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 | AS2527 |
| Network Prefix | 219.104.0.0/16 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 15% | 2 | 2 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 17% | 2 | 3 |
| reputation | 11% | 1 | 2 |
| geolocation | 17% | 2 | 3 |
| Overall | 14% | 10 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-07 18:43:35 UTC |
| Last Seen | 2026-09-29 03:07:40 UTC |
| Profile Built | 2026-09-13 14:46:14 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 27 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 219.104.133.161
Who owns the IP address 219.104.133.161?
219.104.133.161 is registered to Japan Network Information Center. The address falls within the 219.104.128.0/19 network block. Registration is held at APNIC.
Where is 219.104.133.161 located?
Geolocation data places 219.104.133.161 in Fujisawa, Kanagawa, Japan. The local time zone is Asia/Tokyo. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 219.104.133.161 malicious or safe?
219.104.133.161 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 219.104.133.161?
The reverse DNS (PTR) record for 219.104.133.161 is madb6885a1.ap.nuro.jp. This hostname is forward-confirmed, meaning it resolves back to the same address.