16.63.55.221
16.63.55.221 is an IPv4 address operated by Amazon Data Services Switzerland (AS16509), geolocated to Zurich, Switzerland. Its reverse DNS name is ec2-16-63-55-221.eu-central-2.compute.amazonaws.com. As of November 6, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.
Observed IP 16.63.55.221 is an EC2 instance operated by Amazon Data Services Switzerland (ASN 16509) in Zurich. The asset carries a High Risk reputation score of 70, yet specific threat indicators, blacklists, and known attacker associations remain unrecorded. The profile recommendation advises blocking the address citing the high risk score, though the overall confidence level is very low. The host was observed serving HTTP and HTTPS traffic on ports 80 and 443.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Switzerland |
| ASN | AS16509 |
| Network Name | AMAZON-ZRH |
| CIDR Block | 16.62.0.0/15 |
| RIR | ARIN |
| Country | Switzerland |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-16-63-55-221.eu-central-2.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-16-63-55-221.eu-central-2.compute.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| 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 | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | ec2.web.eu-central-2.prod.diagnostic.networking.aws.devv6.ec2.web.eu-central-2.prod.diagnostic.networking.aws.devv6.web.diagnostic.networking.aws.devweb.diagnostic.networking.aws.devhttps.web.diagnostic.networking.aws.devhttps.v6.web.diagnostic.networking.aws.dev |
| Valid From | 2026-07-31T00:00:00+00:00 |
| Valid Until | 2027-02-13T23:59:59+00:00 |
| TLS Protocol | Tls12 |
| Cipher Suite | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 16.62.0.0/15 |
| 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 | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 30% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 33% | 2 | 4 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-27 17:26:34 UTC |
| Last Seen | 2026-11-06 05:39:04 UTC |
| Profile Built | 2026-11-06 05:49:23 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 31 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 16.63.55.221
Who owns the IP address 16.63.55.221?
16.63.55.221 is registered to Amazon Data Services Switzerland. The address falls within the 16.62.0.0/15 network block. Registration is held at ARIN.
Where is 16.63.55.221 located?
Geolocation data places 16.63.55.221 in Zurich, ZH, Switzerland. The local time zone is Europe/Zurich. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 16.63.55.221 malicious or safe?
16.63.55.221 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 16.63.55.221?
The reverse DNS (PTR) record for 16.63.55.221 is ec2-16-63-55-221.eu-central-2.compute.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 16.63.55.221?
Responsive ports observed on 16.63.55.221 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.