It's AT&T. It's not complicated. People in this audience may already be AT&T subscribers or people who are interested in subscribing. They may be seen researching AT&T's mobile plans, or the phones and tablets the carrier offers, such as the Samsung Galaxy S9, LG V30, Apple iPhone X, or Apple iPad Pro.
Who doesn't want to give their phone a good boost! People in this audience are interested in the Boost Mobile, phone carrier brand.
Cricket had a commercial where JOHN CENA surprises his fans by bursting through a wall to greet them. Sadly, he did not say "OHHH YEAHH". This audience includes people who are subscribed to Cricket Wireless and use its prepaid mobile service. They may be seen researching the service provider's cell phone plans, including its Bring Your Phone plan, or the phones that it offers, like an Apple iPhone X or Samsung Galaxy S9.
This carrier is so fast it feels like you're sprinting. Maybe that's where the name came from? A little too on the nose, huh? This audience includes people who are part of Sprint's mobile network or people who are thinking of subscribing to the carrier. They may be seen researching Sprint's unlimited or family plans, or its various deals for the smartphones it offers, such as the Apple iPhone X or Samsung Galaxy S9.
The "T" in T-mobile is for Telekom (yes that is spelled correctly, at least in German). People in this audience are interested in T-Mobile's cell phones and its cell phone plans. They may be seen reading about T-Mobile's many plans, including its T-Mobile ONE plan, or checking out the deals and payment plans for the smartphones it sells, like the Apple iPhone 7 or Samsung Galaxy S8.
Paul Marcarelli, also known as the "can you hear me now" guy, or as Verizon would call him, Benedict Arnold. People in this audience are subscribers to Verizon Wireless' mobile plan. This audience includes people who are also interested in the carrier and are seen researching its mobile and data plans. They may also be seen checking out what smartphones Verizon Wireless offers, like the Apple iPhone X or Samsung Galaxy S8.
The name "virgin" comes from the fact of Richard Branson and Nik Powell feeling as though they were virgins in business. Not because they were going to become wizards by the age of 30. People in this audience are looking for no-contract providers and are especially interested in Virgin Mobile. They may interested in the Virgin Mobile Inner Circle, as well as the carriers domestic and international mobile plans. This audience may also be interested in the smartphones Virgin Mobile offers, like the Apple iPhone X or Samsung Galaxy S9.