139.175.58.105
139.175.58.105 is an IPv4 address operated by Anti-Spammer NCIC (AS4780), geolocated to Hong Kong, Taiwan. Its reverse DNS name is r58-105.seed.net.tw. As of October 21, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Organization | Anti-Spammer NCIC |
| ASN | AS4780 |
| Network Name | SEEDNET-NET |
| CIDR Block | 139.175.56.0/22 |
| RIR | ARIN |
| Country | TW |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | r58-105.seed.net.tw |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | r58-105.seed.net.tw |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ 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 | AS4780 |
| Network Prefix | 139.175.58.0/24 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 35% | 2 | 2 |
| ownership | 25% | 1 | 1 |
| reputation | 0% | 0 | 0 |
| geolocation | 35% | 2 | 2 |
| Overall | 24% | 7 | 7 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-21 07:13:06 UTC |
| Last Seen | 2026-10-21 07:13:06 UTC |
| Profile Built | 2026-10-21 08:03:09 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 20 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 139.175.58.105
Who owns the IP address 139.175.58.105?
139.175.58.105 is registered to Anti-Spammer NCIC. The address falls within the 139.175.56.0/22 network block. Registration is held at ARIN.
Where is 139.175.58.105 located?
Geolocation data places 139.175.58.105 in Hong Kong, NWT, Taiwan. The local time zone is Asia/Taipei. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 139.175.58.105 malicious or safe?
139.175.58.105 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 139.175.58.105?
The reverse DNS (PTR) record for 139.175.58.105 is r58-105.seed.net.tw. This hostname is forward-confirmed, meaning it resolves back to the same address.