Certain Pixel models are receiving a functional update today
An MVNO (Mobile virtual network operator) doesn’t own any spectrum or cell towers. Instead, it leases spectrum from major carriers so that it can offer wireless service under its own name without having to spend big bucks. For example, Dish Network plans on replacing Sprint as the nation’s fourth largest carrier. Before Dish spends the billions needed to build a stand-alone 5G network, it will be an MVNO using spectrum leased from T-Mobile.
To update your Pixel, go to Settings > System > Advanced > System update.