# Amazon SimpleDB endpoints and quotas
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To connect programmatically to an AWS service, you use an endpoint. AWS services offer the following endpoint types in some or all of the AWS Regions that the service supports: IPv4 endpoints, dual-stack endpoints, and FIPS endpoints. Some services provide global endpoints. For more information, see [AWS service endpoints](rande.md).

Service quotas, also referred to as limits, are the maximum number of service resources or operations for your AWS account. For more information, see [AWS service quotas](aws_service_limits.md).

The following are the service endpoints and service quotas for this service.

## Service endpoints
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| Region Name | Region | Endpoint | Protocol | 
| --- | --- | --- | --- | 
| US East (N. Virginia) | us-east-1 |  sdb.amazonaws.com  | HTTP and HTTPS | 
| US West (N. California) | us-west-1 |  sdb.us-west-1.amazonaws.com  | HTTP and HTTPS | 
| US West (Oregon) | us-west-2 |  sdb.us-west-2.amazonaws.com  | HTTP and HTTPS | 
| Asia Pacific (Singapore) | ap-southeast-1 |  sdb.ap-southeast-1.amazonaws.com  | HTTP and HTTPS | 
| Asia Pacific (Sydney) | ap-southeast-2 |  sdb.ap-southeast-2.amazonaws.com  | HTTP and HTTPS | 
| Asia Pacific (Tokyo) | ap-northeast-1 |  sdb.ap-northeast-1.amazonaws.com  | HTTP and HTTPS | 
| Europe (Ireland) | eu-west-1 |  sdb.eu-west-1.amazonaws.com  | HTTP and HTTPS | 
| South America (São Paulo) | sa-east-1 |  sdb.sa-east-1.amazonaws.com  | HTTP and HTTPS | 

## Service quotas
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| Resource | Default | 
| --- | --- | 
| Domains | 250 | 

For more information, see [Amazon SimpleDB Quotas](https://docs.aws.amazon.com/AmazonSimpleDB/latest/DeveloperGuide/SDBLimits.html) in the *Amazon SimpleDB Developer Guide*.