Situation

Want Get Notify When AWS CloudFront IP Range Changed

Solution

Step 1 Create SNS Subscription And Select Protocol

Topic ARN Enter arn:aws:sns:us-east-1:806199016981:AmazonIpSpaceChanged

Step 2 Go To Mailbox And Verify Subscription

Click Confirm subscription

If AWS Public IP Changed, You’ll Recive Mail Notify Looks Like These

{
  "create-time":"yyyy-mm-ddThh:mm:ss+00:00",
  "synctoken":"0123456789",
  "md5":"6a45316e8bc9463c9e926d5d37836d33",
  "url":"https://ip-ranges.amazonaws.com/ip-ranges.json"
}

You Also Can Use SNS Trigger Other Service To Do Something