Amazon VPC Announces Pricing Change for VPC Peering
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Starting May 1st 2021, all data transfer over a VPC Peering connection that stays within an Availability Zone (AZ) is now free. All data transfer over a VPC Peering connection that crosses Availability Zones will continue to be charged at the standard in-region [data transfer rates](/ec2/pricing/on-demand/). You can use the [Availability Zone-ID](https://docs.aws.amazon.com/ram/latest/userguide/working-with-az-ids.html) to uniquely and consistently identify an Availability Zone across different AWS accounts.
Customers use VPC Peering to inter-connect VPCs within a region. VPC Peering is commonly used when interconnecting a small number of VPCs in a region to achieve full mesh connectivity. [AWS Transit Gateway](/transit-gateway/) and [AWS PrivateLink](/privatelink/) are the recommended mechanisms to inter-connect hundreds or thousands of VPCs at scale.
This change is available in all AWS Regions including AWS Gov Cloud (US) Regions.
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