121.156.121.82
Subject: 121.156.121.82/32
Ownership and Location:
The address was registered to ASN 4766 (IP Manager, KORNET-KR) within the APNIC RIR. Geolocation data placed the endpoint in South Korea (KR) with a consensus on the Seoul region. Routing analysis confirmed the origin ASN 4766.
Network Characteristics:
Traffic classification identified the address as mobile, associated with carrier KT Corporation (KT) operating on LTE/5G technology. Service scanning returned no open ports, and the endpoint was characterized as firewalled with no active web services or TLS certificates observed. DNS resolution was not forward confirmed
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IP Manager |
| ASN | AS4766 |
| Network Name | KORNET-KR |
| CIDR Block | 121.128.0.0/11 |
| RIR | APNIC |
| Country | KR |
| 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 Hygiene
| Hygiene Score | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Mobile |
| 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 | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 24% | 2 | 2 |
| routing | 17% | 1 | 1 |
| services | 24% | 2 | 2 |
| ownership | 35% | 2 | 3 |
| reputation | 17% | 1 | 1 |
| geolocation | 24% | 2 | 2 |
| Overall | 23% | 10 | 11 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-19 07:31:25 UTC |
| Last Seen | 2026-09-23 05:40:37 UTC |
| Profile Built | 2026-09-23 05:53:03 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 26 |
Full dossier details are available via our API.