Robi is the second-largest mobile network operator in Bangladesh. It was founded in 1997. It has 47.34 million members. Do you also use Robi sim? Do you want to check your Robi balance? Then this post is for you. In this post, we will show you how to check Robi balance. You can check your Robi balance by using a code. The code is *222#. Now we will show you step by step.