221.188.19.103
🏢 Ownership & Registration
| Organization | Japan Network Information Center |
| ASN | AS4713 |
| Network Name | OCN |
| CIDR Block | 221.188.0.0/17 |
| RIR | APNIC |
| Country | JP |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | p7662104-ipoefx.ipoe.ocn.ne.jp |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | p7662104-ipoefx.ipoe.ocn.ne.jp |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS4713 |
| Network Prefix | 221.184.0.0/13 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 31% | 2 | 5 |
| routing | 8% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 23% | 2 | 4 |
| reputation | 23% | 1 | 4 |
| geolocation | 23% | 2 | 4 |
| Overall | 20% | 10 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-14 03:40:13 UTC |
| Last Seen | 2026-09-03 01:04:46 UTC |
| Profile Built | 2026-09-03 01:05:27 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 29 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 221.188.19.103
Who owns the IP address 221.188.19.103?
221.188.19.103 is registered to Japan Network Information Center. The address falls within the 221.188.0.0/17 network block. Registration is held at APNIC.
Where is 221.188.19.103 located?
Geolocation data places 221.188.19.103 in Sapporo, 01, 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 221.188.19.103 malicious or safe?
221.188.19.103 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 221.188.19.103?
The reverse DNS (PTR) record for 221.188.19.103 is p7662104-ipoefx.ipoe.ocn.ne.jp. This hostname is forward-confirmed, meaning it resolves back to the same address.