Global service
IAM
Users are global entities, like an AWS account is today. No region is required to be specified when you define user.
One Region, Multiple Availability Zone automatically
Amazon Elastic File System
Amazon EFS is a regional service storing data within and across multiple Availability Zones (AZs) for high availability and durability.
SNS
All messages published to SNS are stored redundantly across multiple Availability Zones.
SQS
Amazon SQS stores all message queues and messages within a single, highly-available AWS region with multiple redundant Availability Zones (AZs), so that no single computer, network, or AZ failure can make messages inaccessible.
Multiple Availability Zone automatically, Go to multiple regions with additional feature
Amazon Aurora
Amazon Aurora is designed to offer greater than 99.99% availability, replicating 6 copies of your data across 3 Availability Zones and backing up your data continuously to Amazon S3.
Amazon Aurora Global Database
Amazon Aurora Global Database is designed for globally distributed applications, allowing a single Amazon Aurora database to span multiple AWS regions.
Amazon S3
You specify an AWS Region when you create your Amazon S3 bucket. For S3 Standard, S3 Standard-IA, and S3 Glacier storage classes, your objects are automatically stored across multiple devices spanning a minimum of three Availability Zones, each separated by miles across an AWS Region.
Cross-Region replication (CRR) is used to copy objects across Amazon S3 buckets in different AWS Regions.
Amazon DynamoDB
Amazon DynamoDB global tables provide a fully managed solution for deploying a multiregion, multi-master database, without having to build and maintain your own replication solution.
One Availability Zone by default, can go to multiple availability zones
Amazon RDS
When you provision a Multi-AZ DB Instance, Amazon RDS synchronously replicates the data to a standby instance in a different Availability Zone (AZ).