121.188.217.54
121.188.217.54 is an IPv4 address operated by KIXS-AS-KR-KR - Korea Telecom, KR (AS4766), with approximate network location Jeju-si, South Korea. It belongs to a mobile network. As of November 14, 2026, IPDebrief rates it Low Risk (15/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Unknown |
| ASN | AS4766 |
| Network Name | KORNET-KR |
| CIDR Block | 121.160.0.0/11 |
| RIR | APNIC |
| Network registration country | KR |
| Routing operator | KIXS-AS-KR-KR - Korea Telecom, 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 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.
| caa | Not applicable |
| spf | Not checked |
| dmarc | Not checked |
| dnssec | Unknown / lookup inconclusive 54.217.188.121.in-addr.arpa |
| fcrDns | Not applicable |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 22 | ssh | tcp | — |
| Closed Ports | 25, 3389, 8080, 8443 (3 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| Port | Latest capture attempt |
|---|---|
| 443 | Certificate captured (captured) |
| 8443 | Certificate not captured; current certificate unknown (unreachable) |
| Port | Probe target | Certificate finding |
|---|---|---|
| 443 | 121.188.217.54 (IP-targeted) | C=US, S=California, L=Sunnyvale, O=Ruckus Wireless Inc., CN=SN-992202001212 Within validity period when last observed |
| (IP-targeted) | C=US, S=California, L=Sunnyvale, O=Ruckus Wireless Inc., CN=SN-992202001212 Historical certificate; current certificate unknown |
| SANs | None |
| Valid From | 2022-02-12T08:18:27Z |
| Valid Until | 2047-02-13T08:18:27Z |
| TLS Protocol | Tls12 |
| Cipher Suite | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 9132 days |
🛡️ Public Network Snapshot
| Origin ASN | AS4766 |
| Network Prefix | 121.184.0.0/13 |
| 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 | 24% | 2 | 8 |
| routing | 3% | 1 | 1 |
| services | 10% | 2 | 3 |
| ownership | 7% | 2 | 3 |
| reputation | 6% | 1 | 2 |
| geolocation | 8% | 2 | 2 |
| Overall | 10% | 10 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Fresh
| First Seen | 2026-07-14 09:42:42 UTC |
| Last Seen | 2026-11-14 02:26:14 UTC |
| Profile Built | 2026-11-14 04:19:59 UTC |
| Data Freshness | Fresh |
| Signal Types | 27 |
| Total Observations | 40 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 121.188.217.54
Where is 121.188.217.54 located?
Geolocation data places 121.188.217.54 in Jeju-si, Jeju-do, South Korea. The local time zone is Asia/Seoul. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 121.188.217.54 malicious or safe?
121.188.217.54 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 ports are open on 121.188.217.54?
Responsive ports observed on 121.188.217.54 include 80, 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 121.188.217.54 a VPN, proxy, or data center address?
121.188.217.54 is classified as a mobile network based on network ownership and behavioural analysis.