Red Hat Subscription Manager works with yum. Subscription Manager has its own yum plug-ins: product-id for subscription-related information for products and subscription-manager which is used for the content repositories.
6.1. Viewing available repositories
Subscription management application can define a number of different content repositories, based on environments, physical locations, and other factors. Even when using the Red Hat Content Delivery Network, multiple repositories are available depending on the product.
The repos command lists all of the repositories that are available to the configuration environments and organization for a system, and then shows whether those repositories are enabled for the system.