124.255.8.221
124.255.8.221 is an IPv4 address announced by AS4686, with approximate network location Japan. Its reverse DNS name is 221.8.255.124.ap.mvno.net. As of November 11, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Japan Network Information Center |
| ASN | AS4686 |
| Network Name | FB-NET |
| CIDR Block | 124.255.0.0/19 |
| RIR | APNIC |
| Network registration country | JP |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 221.8.255.124.ap.mvno.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 221.8.255.124.ap.mvno.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 | Single-Service Host |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| Closed Ports | 22, 25, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS4686 |
| Network Prefix | 124.255.0.0/19 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Not detected |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 17% | 2 | 3 |
| ownership | 23% | 2 | 4 |
| reputation | 23% | 1 | 4 |
| geolocation | 17% | 2 | 3 |
| Overall | 19% | 10 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-13 15:24:10 UTC |
| Last Seen | 2026-10-09 02:23:05 UTC |
| Profile Built | 2026-11-11 14:29:49 UTC |
| Data Freshness | Stale |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 124.255.8.221
Who owns the IP address 124.255.8.221?
124.255.8.221 is registered to Japan Network Information Center. The address falls within the 124.255.0.0/19 network block. Registration is held at APNIC.
Where is 124.255.8.221 located?
Geolocation data places 124.255.8.221 in Japan. The local time zone is Asia/Tokyo. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 124.255.8.221 malicious or safe?
124.255.8.221 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 124.255.8.221?
The reverse DNS (PTR) record for 124.255.8.221 is 221.8.255.124.ap.mvno.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 124.255.8.221?
Responsive ports observed on 124.255.8.221 include 80. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.