Inter-Region VPC Peering allows VPC resources like Amazon EC2 instances, Amazon RDS (Relational Database Service) databases and AWS Lambda functions running in different AWS Regions to communicate with each other using private IP addresses, without requiring gateways, VPN (Virtual Private Network) connections or separate physical hardware. Built on the same horizontally scaled, redundant, and highly available technology that powers VPC today, Inter-Region VPC Peering encrypts inter-region traffic with no single point of failure or bandwidth bottleneck. Traffic using Inter-Region VPC Peering always stays on the global AWS backbone and never traverses the public internet, thereby reducing threat vectors, such as common exploits and DDoS attacks.
With this regional launch, Inter-Region VPC Peering is now available in 14 AWS Regions: US East (Northern Virginia), US East (Ohio), US West (Northern California), US West (Oregon), EU (Ireland), EU (Frankfurt), EU (London), EU (Paris), Asia Pacific (Mumbai), Asia Pacific (Sydney), Asia Pacific (Singapore), Asia Pacific (Tokyo), Canada (Central) and South America (São Paulo) Regions.
For more information, visit the documentation page for VPC peering.