121.43.165.219
121.43.165.219 is an IPv4 address announced by AS37963, with approximate network location Hangzhou, China. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Li Jia |
| ASN | AS37963 |
| Network Name | ALISOFT |
| CIDR Block | 121.40.0.0/14 |
| RIR | APNIC |
| Network registration country | CN |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
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 | AS37963 |
| Network Prefix | 121.42.0.0/15 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 23% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 36% | 2 | 5 |
| reputation | 8% | 1 | 2 |
| geolocation | 17% | 2 | 3 |
| Overall | 17% | 10 | 17 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-11 08:21:37 UTC |
| Last Seen | 2026-10-06 11:02:10 UTC |
| Profile Built | 2026-11-12 01:49:48 UTC |
| Data Freshness | Stale |
| Signal Types | 19 |
| Total Observations | 19 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 121.43.165.219
Who owns the IP address 121.43.165.219?
121.43.165.219 is registered to Li Jia. The address falls within the 121.40.0.0/14 network block. Registration is held at APNIC.
Where is 121.43.165.219 located?
Geolocation data places 121.43.165.219 in Hangzhou, Zhejiang, China. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 121.43.165.219 malicious or safe?
121.43.165.219 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.