Available Region Endpoints for the AWS SDKs

AWS infrastructure services are hosted in multiple locations world-wide. These regions are logically isolated from each other, so for example, you won't be able to access US East resources when communicating with the EU West endpoint. You might choose a region to optimize latency, minimize costs, or address regulatory requirements.

For more information on how services operate in each region, see the service Developer Guide at https://aws.amazon.com/documentation. For information about AWS regions and endpoints, go to Regions and Endpoints in the Amazon Web Services General Reference.

Using Regions with the AWS SDKs
AWS Regions and Endpoints Reference

The AWS SDKs support making requests to each region. The region endpoint is set by configuring the client object. The following examples demonstrate how to configure the endpoint used in your requests to a service.

AmazonEC2Client ec2 = new AmazonEC2Client(myCredentials);
ec2.setEndpoint("ec2.ap-southeast-1.amazonaws.com");
ec2.describeInstances();

Note: See AWS SDK for Java Tips and Tricks for more information about configuring the client object for the AWS SDK for Java.

AmazonElasticLoadBalancingConfig config = new   AmazonElasticLoadBalancingConfig();
config.ServiceURL =   "https://ap-southeast-1.elasticloadbalancing.amazonaws.com";
AmazonElasticLoadBalancing  elb = new AmazonElasticLoadBalancingClient("ACCESS_KEY", "SECRET_KEY",    config);

$ec2 = new AmazonEC2();
$ec2->set_hostname('ec2.ap-southeast-1.amazonaws.com');
$response = $ec2->describe_instances();

AmazonSimpleDBClient *sdb = [[AmazonSimpleDBClient alloc]  initWithAccessKey:@"ACCESS_KEY"  
withSecretKey:@"SECRET_KEY"]; sdb.endpoint = @"https://sdb.amazonaws.com";

For information about AWS regions and endpoints, go to Regions and Endpoints in the Amazon Web Services General Reference.