The package includes unlimited texts, uncapped calls to UK landlines and 2,500 anytime minutes.
Loyal Virgin Media customers will be able to switch to the new plan for the budget price of £21, and will receive the added incentive of including unlimited texts and calls to other Virgin mobiles.
Alternately, a new Starter tariff including all of the above features minus the unlimited data is available at £18 per month for new subscribers, or £13 per month for existing customers.
Jamie Heywood, director of mobile at Virgin Media, said: "As people look for the best value, we're rewarding loyalty with some amazing tariffs with unlimited offerings that our customers can enjoy without worrying about hidden extras, as well as helping to combat bill shock."
The new plans, available on two-year contracts, also include free mobile phone insurance, data back-up and a remote lock and locate service. Virgin's mobile insurance costs £7.99 per month to non-subscribers.
"We were astounded to find so many people were prepared to gamble when it came to protecting their handsets, which is why we are now the only provider to offer inclusive insurance as standard for our loyal customers at no extra cost," Heywood added.
The Premier and Starter tariffs are now available to newcomers and existing subscribers.