A 3GB data plandata planA data pack (or fact pack) is a pre-made database that can be fed to a software, such as software agents, game, Internet bots or chatterbots, to teach information and facts, which it can later look up. In other words, a data pack can be used to feed minor updates into a system. will allow you to browse the internet for around 36 hours, to stream 600 songs or to watch 6 hours of standard-definition video. Nowadays, the key difference between mobile phone price plans is how many gigabytes of data it comes with.