165.173.21.44
🏢 Ownership & Registration
| Organization | Network Admin |
| ASN | AS56300 |
| Network Name | MYREPUBLIC-SG |
| CIDR Block | 165.173.0.0/18 |
| RIR | ARIN |
| Country | SG |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 165-173-21-44.myrepublic.com.sg |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 165-173-21-44.myrepublic.com.sg |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | 0/5 domains |
| DMARC | 0/5 domains |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
| Domains Checked | 5 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| 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 | — |
| 8443 | https-alt | tcp | — |
| Closed Ports | 22, 25, 3389, 8080 (3 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
CN=fondstech.synology.me was found on this IP. This may indicate a previously hosted website, a decommissioned service, or stale infrastructure.| SANs | *.fondstech.synology.mefondstech.synology.me |
| Valid From | 2026-06-30T03:24:12+00:00 |
| Valid Until | 2026-09-28T03:24:11+00:00 (expired) |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384ECDSA |
| Validity Period | 89 days |
🛡️ Public Network Snapshot
| Origin ASN | AS56300 |
| Network Prefix | 165.173.21.0/24 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 20% | 2 | 3 |
| routing | 8% | 1 | 1 |
| services | 20% | 2 | 3 |
| ownership | 17% | 2 | 3 |
| reputation | 8% | 1 | 2 |
| geolocation | 17% | 2 | 3 |
| Overall | 15% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-13 21:32:00 UTC |
| Last Seen | 2026-09-05 20:17:11 UTC |
| Profile Built | 2026-09-05 02:00:28 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 33 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 165.173.21.44
Who owns the IP address 165.173.21.44?
165.173.21.44 is registered to Network Admin. The address falls within the 165.173.0.0/18 network block. Registration is held at ARIN.
Where is 165.173.21.44 located?
Geolocation data places 165.173.21.44 in Singapore. The local time zone is Asia/Singapore. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 165.173.21.44 malicious or safe?
165.173.21.44 currently carries a high risk assessment, meaning indicators associated with malicious or abusive activity have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 165.173.21.44?
The reverse DNS (PTR) record for 165.173.21.44 is 165-173-21-44.myrepublic.com.sg. This hostname is not forward-confirmed, so it should be treated as a weak signal.
What ports are open on 165.173.21.44?
Responsive ports observed on 165.173.21.44 include 80, 443, 8443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.