The company later backtracked on its throttling plans, but it looks like they could return. According to a post by Sprint’s CTO Dr. John Saw, he warns users on their unlimited data plans that they could face certain restrictions. Basically users who are found to have used more than 23GB of data a month would be prioritized lower on the network.
While this isn’t an outright claim by Sprint that they will throttle the speeds of these users, it does seem to suggest that maybe they won’t be given the same amount of bandwidth compared to other Sprint customers. However Sprint makes it clear that this will only happen in times when the network is constrained, but otherwise service should be as per normal.
If you live or work in crowded areas like the city, then perhaps you might be affected by this more than others. However if your area isn’t as crowded then hopefully network constraints won’t be as often.