Planet allows users to upload individual AOIs to their account(s) as feature collections which can then be referenced via Subscriptions, Orders or Data API. 

If a user is a part of a large organization and a change needs to be made to the uploaded AOIs, only the feature collection owner can modify or delete the features they have uploaded. Understanding who within the organization placed the feature collection can then help to make the necessary changes. 

There are a few methods available through the Planet Platform and APIs. The option that works best for you depends on your individual preferences, whether that is web interface, programmatic access, or integration with external tools.

Via the Features Manager UI

In the Features Manager, collections display tags indicating ownership. The owner tag appears on collections you own, and a shared tag appears on collections shared with you or your organization.

Via the Features API

Using a GET request you can query all feature collections for an organization using the org_id parameter. The response includes an ownership field with the owner_id:

GET https://api.planet.com/features/v1/ogc/my/collections/?_x-lock=true&limit=100&org_id={your-org-id}

The response will contain an ownership block like this: