The AT&T U-verse 300 channel guide lists the channels available to viewers purchasing the U-verse 300 package. As of April 2015, the package provides up to 370 digital channels to subscribers.
The channel guide is accessible by selecting U-verse Channel Lineup through the Digital TV sub-heading under the Shop header at ATT.com. A complete list of channels is displayed on the following page, along with a grid of the U-basic, U-family, U-200, U-300 and U-450 packages. A green check mark indicates the network is available to subscribers of the respective package. Channel availability is dependent on the geographical location of the subscriber and can be updated by clicking the Change link next to the ZIP code in the upper-left corner of the page.