# 16.63.55.221 — IP Intelligence Summary

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.

- Canonical page: https://ipdebrief.com/16.63.55.221
- Last updated: 2026-11-06

## Ownership

- Organization: Amazon Data Services Switzerland
- Network name: AMAZON-ZRH
- Allocated block: 16.62.0.0/15
- ASN: AS16509 (https://ipdebrief.com/asn/16509)
- Regional registry: ARIN
- Cloud / hosting provider: Amazon Web Services

## Location

- City: Zurich
- Region: ZH
- Country: Switzerland
- Time zone: Europe/Zurich

## Network classification

- Infrastructure type: Unknown
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- Anycast: no
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: High Risk (70/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- ec2-16-63-55-221.eu-central-2.compute.amazonaws.com
- Forward-confirmed: yes

## Exposed services

- 80/tcp — http
- 443/tcp — https

## Analyst narrative

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.

## Addresses sharing infrastructure

- 16.50.84.90 — Same abuse contact (https://ipdebrief.com/16.50.84.90)
- 16.62.13.206 — Same abuse contact (https://ipdebrief.com/16.62.13.206)
- 16.62.132.61 — Same abuse contact (https://ipdebrief.com/16.62.132.61)
- 16.62.176.117 — Same abuse contact (https://ipdebrief.com/16.62.176.117)
- 18.60.243.66 — Same abuse contact (https://ipdebrief.com/18.60.243.66)
- 18.60.244.231 — Same abuse contact (https://ipdebrief.com/18.60.244.231)
- 18.61.55.249 — Same abuse contact (https://ipdebrief.com/18.61.55.249)
- 98.130.253.226 — Same abuse contact (https://ipdebrief.com/98.130.253.226)
- 98.130.254.226 — Same abuse contact (https://ipdebrief.com/98.130.254.226)

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Source: IPDebrief, "16.63.55.221 IP intelligence", https://ipdebrief.com/16.63.55.221, updated 2026-11-06. Assessments are probabilistic.