Have you ever tried to google for a list of AWS Regions or Availability Zones? I do it all the time. I need to figure out which AZs to my ELB should go across, or want to try my new CloudFormation template in a different region to make sure I didn’t hardcode something I shouldn’t have.

Of course, I usually blank out on how many zones each region has, and I always get my directions screwed up so I can never remember if Ireland is eu-west or eu-east (and while it is embarrassing to admit, I had no idea where São Paulo was before I started working with the AWS platform). However, every time I google for a list of AZs, I remember that none of the AWS documentation gives a nice, easy list of all the regions and their availability zones. AWS does add new zones and regions pretty regularly, so a list might go out of date after a few months. Still, I end up looking for these every few days, so I wrote them all out, and then put it on the internet, so hopefully next time I google for “list of availability zones” this page pops up. Maybe it’ll help you too?

If you want to get the latest AZs for each region, I also include a Python script below.

US East (Ohio) us-east-2

  • us-east-2a
  • us-east-2b
  • us-east-2c

US East (N. Virginia) us-east-1

  • us-east-1a
  • us-east-1b
  • us-east-1c
  • us-east-1d
  • us-east-1e
  • us-east-1f

US West (N. California) us-west-1

  • us-west-1a
  • us-west-1c

US West (Oregon) us-west-2

  • us-west-2a
  • us-west-2b
  • us-west-2c
  • us-west-2d

Asia Pacific (Mumbai) ap-south-1

  • ap-south-1a
  • ap-south-1b
  • ap-south-1c

Asia Pacific (Seoul) ap-northeast-2

  • ap-northeast-2a
  • ap-northeast-2b
  • ap-northeast-2c

Asia Pacific (Singapore) ap-southeast-1

  • ap-southeast-1a
  • ap-southeast-1b
  • ap-southeast-1c

Asia Pacific (Sydney) ap-southeast-2

  • ap-southeast-2a
  • ap-southeast-2b
  • ap-southeast-2c

Asia Pacific (Tokyo) ap-northeast-1

  • ap-northeast-1a
    ap-northeast-1c
    ap-northeast-1d

Canada (Central) ca-central-1

  • ca-central-1a
  • ca-central-1b

Europe (Frankfurt) eu-central-1

  • eu-central-1a
  • eu-central-1b
  • eu-central-1c

Europe (Ireland) eu-west-1

  • eu-west-1a
  • eu-west-1b
  • eu-west-1c

Europe (London) eu-west-2

  • eu-west-2a
  • eu-west-2b
  • eu-west-2c

Europe (Paris) eu-west-3

  • eu-west-3a
  • eu-west-3b
  • eu-west-3c

Europe (Stockholm) eu-north-1

  • eu-north-1a
  • eu-north-1b
  • eu-north-1c

South America (Sao Paulo) sa-east-1

  • sa-east-1a
  • sa-east-1b
  • sa-east-1c

Python Script to Get All Availability Zones

I’ve included a Python script below that shows how to get all the availability zones available to the EC2 service which you can use to obtain the latest AZs for each AWS region.

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