# Admin guide for private model hubs in Amazon SageMaker JumpStart
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There are actions that administrators can take related to curated model hubs that users within your organization can access. This includes creating, adding, deleting, and managing access of private hubs. This page also includes information about the supported Amazon Regions for curated private hubs, as well as the prerequisites needed to use curated private model hubs. 

## Supported Amazon Regions
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Curated private hubs are currently generally available in the following Amazon commercial Regions:
+ us-east-1
+ us-east-2
+ us-west-2
+ eu-west-1
+ eu-central-1
+ ap-northeast-1
+ ap-northeast-2
+ ap-south-1
+ ap-southeast-1
+ ap-southeast-2
+ il-central-1 (SDK only)

The default maximum number of hubs allowed in a single Region is 50.

## Prerequisites
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To use a curated private hub in Studio, you must have the following prerequisites:
+ An Amazon account with administrator access
+ An Amazon Identity and Access Management (IAM) role with access to Amazon SageMaker Studio
+ An Amazon SageMaker AI domain with JumpStart enabled
+ If your users try to use proprietary models, they must have subscriptions to those models in Amazon Marketplace.
+ Amazon accounts that are deploying proprietary models must have subscriptions to those models in Amazon Marketplace.

For more information on getting started with Studio, see [Amazon SageMaker Studio](studio-updated.md).