3.5.104.173
3.5.104.173 is an IPv4 address operated by Amazon Data Services Northern Virginia (AS16509), geolocated to Columbus, United States. It belongs to datacenter or hosting infrastructure. As of November 2, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
Intelligence analysis identified IP 3.5.104.173 as a low-risk host with a risk score of 25. Ownership records attributed the address to Amazon Data Services Northern Virginia (ASN 16509) within the AMAZON-S3 CIDR block (3.5.0.0/16).
Service scanning indicated the IP operated as a cloud compute host providing web services on ports 80, 443, and 8080. TLS certificate validation linked the address to Amazon S3 domains in us-east-2, with a server banner identifying the service as AmazonS3.
Geolocation data placed the infrastructure in Columbus, Ohio. However, network validation metrics contradicted this placement; RTT measurements recorded 35ms against a calculated physical distance of 6580.9km, resulting in a physics violation. This inconsistency contributed to a "Suspicious Host" classification despite the absence of active threat indicators or known campaigns.
No malicious indicators were found on threat feeds, and the address was not listed as a known attacker or Tor exit node. Behavioral analysis recorded zero incidents, enumeration strikes, or WAF violations. The immediate subnet (3.5.104.0/24) exhibited mixed classification with an abuse density of 0.4.
Recommendations advised analysts to monitor the address due to signal contradictions between geolocation and network physics.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Northern Virginia |
| ASN | AS16509 |
| Network Name | AMAZON-S3 |
| CIDR Block | 3.5.0.0/16 |
| RIR | ARIN |
| Country | United States |
| 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 | 40% (Fair) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 8080 | http-alt | tcp | — |
| Closed Ports | 22, 25, 3389, 8443 (3 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.s3.us-east-2.amazonaws.coms3.us-east-2.amazonaws.com*.s3.amazonaws.com*.s3-accesspoint.dualstack.us-east-2.amazonaws.com*.s3-control.us-east-2.amazonaws.coms3.dualstack.us-east-2.amazonaws.coms3-control.dualstack.us-east-2.amazonaws.com*.s3-deprecated.us-east-2.amazonaws.com*.s3.dualstack.us-east-2.amazonaws.coms3-control.us-east-2.amazonaws.com |
| Valid From | 2026-09-11T00:00:00+00:00 |
| Valid Until | 2027-03-27T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 3.5.104.0/22 |
| 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 | 36% | 2 | 5 |
| routing | 13% | 1 | 1 |
| services | 30% | 2 | 3 |
| ownership | 30% | 2 | 3 |
| reputation | 32% | 1 | 5 |
| geolocation | 32% | 2 | 3 |
| Overall | 29% | 10 | 20 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-20 09:05:50 UTC |
| Last Seen | 2026-11-02 13:05:54 UTC |
| Profile Built | 2026-11-02 13:22:06 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 28 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 3.5.104.173
Who owns the IP address 3.5.104.173?
3.5.104.173 is registered to Amazon Data Services Northern Virginia. The address falls within the 3.5.0.0/16 network block. Registration is held at ARIN.
Where is 3.5.104.173 located?
Geolocation data places 3.5.104.173 in Columbus, OH, United States. The local time zone is America/New_York. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 3.5.104.173 malicious or safe?
3.5.104.173 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 3.5.104.173?
Responsive ports observed on 3.5.104.173 include 80, 443, 8080. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 3.5.104.173 a VPN, proxy, or data center address?
3.5.104.173 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.