Posted On: Jun 30, 2022
Starting today, Amazon Virtual Private Cloud (VPC) customers can create their own prefix lists in five additional AWS Regions: AWS Asia Pacific (Jakarta), AWS China (Beijing) region, operated by Sinnet and AWS China (Ningxia) region, operated by NWCD and both AWS GovCloud (US) regions.
A prefix list is a collection of CIDR blocks that can be used to configure VPC route tables, AWS Transit Gateway (TGW) route tables, and VPC security groups. Customers can share prefix lists with other AWS accounts using Resource Access Manager (RAM) to easily audit and apply prefix lists across all their accounts to have a consistent security posture and routing behavior.
VPC security groups, VPC route tables, and TGW route tables are used to control access and routing policies. Customers often have a common set of CIDR blocks for security group and route table configurations. Prefix lists allow customers to group multiple CIDR blocks into a single object, and use it as a reference in their security groups or route tables. This makes it easier for customers to roll out changes and maintain consistency in security groups and route tables across multiple VPCs and accounts.
There is no additional charge for using prefix lists.
With this region expansion, customer-managed prefix lists is now available in the following AWS Regions: US East (Ohio), US East (N. Virginia), US West (N. California), US West (Oregon), Africa (Cape Town), Asia Pacific (Hong Kong), Asia Pacific (Jakarta), Asia Pacific (Mumbai), Asia Pacific (Osaka), Asia Pacific (Seoul), Asia Pacific (Singapore), Asia Pacific (Sydney), Asia Pacific (Tokyo), Canada (Central), AWS China (Beijing) region, operated by Sinnet and AWS China (Ningxia) region, operated by NWCD, Europe (Frankfurt), Europe (Ireland), Europe (London), Europe (Milan), Europe (Paris), Europe (Stockholm), South America (São Paulo), Middle East (Bahrain), and AWS GovCloud (US).