# 63.181.51.33 — IP Intelligence Summary

63.181.51.33 is an IPv4 address operated by AMAZON-02 - Amazon.com, Inc., US (AS16509), with approximate network location Frankfurt am Main, Germany. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/63.181.51.33
- Last updated: 2026-11-13

## Ownership

- Organization: A100 ROW GmbH
- Network name: AMAZON-FRA
- Allocated block: 63.180.0.0/14
- ASN: AS16509 (https://ipdebrief.com/asn/16509)
- Regional registry: ARIN
- Registered holder: A100 ROW GmbH
- Routing operator: AMAZON-02 - Amazon.com, Inc., US
- Network registration country: Germany
- Registrant address country: —
- Cloud / hosting provider: Amazon Web Services

## Location

- City: Frankfurt am Main
- Region: Hesse
- Country: Germany
- Time zone: Europe/Berlin

Approximate network location; registration and certificate addresses are not server-location evidence.

## Network classification

- Infrastructure type: Unknown
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- Anycast: Unverified (not proof of unicast)
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

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

## Exposed services

- 443/tcp — https

## DNS posture

Mail authentication and CAA are optional domain policies, not IP-wide requirements.

- caa: Unknown / lookup inconclusive (amazonaws.com)
- spf: Not checked
- dmarc: Not checked
- dnssec: Unknown / lookup inconclusive (33.51.181.63.in-addr.arpa)
- fcrDns: Not checked

## TLS observations

- CN=lms-aws-eu-central-1.roblox.com; port unknown; target —; Historical certificate; current certificate unknown; valid until 2027-04-07T23:59:59.0000000+00:00

## Addresses sharing infrastructure

- 3.120.28.18 — Same TLS certificate (https://ipdebrief.com/3.120.28.18)
- 18.157.245.23 — Same TLS certificate (https://ipdebrief.com/18.157.245.23)
- 18.192.234.183 — Same TLS certificate (https://ipdebrief.com/18.192.234.183)
- 18.192.238.137 — Same TLS certificate (https://ipdebrief.com/18.192.238.137)
- 52.28.221.107 — Same TLS certificate (https://ipdebrief.com/52.28.221.107)
- 63.185.47.162 — Same TLS certificate (https://ipdebrief.com/63.185.47.162)
- 63.187.86.211 — Same TLS certificate (https://ipdebrief.com/63.187.86.211)
- 63.188.57.254 — Same TLS certificate (https://ipdebrief.com/63.188.57.254)

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Source: IPDebrief, "63.181.51.33 IP intelligence", https://ipdebrief.com/63.181.51.33, updated 2026-11-13. Assessments are probabilistic.