BYOIP on AWS and Vultr: Bring Your Own IPv6 Prefix to the Cloud (2026)

BYOIP (Bring Your Own IP) lets you use your own IP addresses with cloud providers like AWS, Vultr, and GCP. This is increasingly important for organizations that need IP reputation portability, multi-cloud failover, or compliance with geo-specific regulations. Here's a practical guide to BYOIP with IPv6 on the most popular platforms. Why BYOIP? IP reputation : Keep your IPs when switching providers Multi-cloud : Announce the same prefix from multiple clouds Compliance : Some regulations require specific IP geo-location DDoS mitigation : Route traffic through scrubbing services using your own prefix Portability : You own your IPs, not your cloud provider Prerequisites Before you can use BYOIP, you need: Your own ASN — a unique number identifying your network An IPv6 prefix (minimum /48 for most providers, /24 for IPv4) ROA (Route Origin Authorization) published in RPKI IRR objects (route6, aut-num) in a routing registry If you don't have these yet, you'll need to work with a Regional In