Amazon Route 53 Resolver inbound endpoints now support DNS64, allowing synthesis of IPv6 AAAA DNS records from IPv4-only A records. This enables IPv6-only clients within on-premises networks to access IPv4 services hosted in AWS without modifying those services. Outbound endpoints also gained the ability to forward DNS queries to public IPv6 name servers through an internet gateway, facilitating IPv6 traffic management.
These enhancements simplify DNS resolution workflows in hybrid cloud environments as organizations transition workloads to IPv6, helping resources communicate seamlessly across protocols without complex workarounds. The features are available at no additional cost across all supported AWS Regions offering Route 53 Resolver endpoints.
Source & further reading
Amazon Route 53 Resolver endpoints now support additional capabilities for IPv6 query traffic ↗Source published 2026-05-07. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.