Global Infrastructure

The AWS Global Infrastructure builds around Regions and Availability Zones. So far, there are:

  • 65 availability zones

  • 22 geographic regions

  • 1 local region


Regions provide physically separated availability zones, which are connected with low latency, high throughput, and highly redundant networking.

Availability Zones

Availability Zones offer high availability, fault tolerance and scalability.

  • Consists of one or more discrete data centers, each with redundant power, networking and connectivity, housed in separate facilities.

  • An availability zone is represented by a region code followed by a letter identifier, for example - us-east-1a

  • Local region is a single data center designated to compliment an existing AWS region

  • Edge locations are locations where end users access services located at AWS.

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