I suppose I can bring it back to the burner phone situation, because if we're looking simply for phone numbers, like you mentioned, there could be a phone that's being swapped or a SIM card that's being swapped. There are a number of different things they can change to try to maintain their anonymity.
Some of the information you can recover from, for example, a service provider in this list would be devices being used or equipment being used. What we've seen in the past is that we've established, potentially, the residence of the individuals or individual involved in a crime, and we're able to see, as a result, that they've used multiple devices to access a certain website, for example.
In the case of a bank fraud or something like that, it could be that a particular account was accessed by multiple different devices, but from potentially the same location. That gives us an indication that different devices are being used by a particular individual, even though they are swapping SIM cards or something like that. It's the same device or the same type of device being used, or it's a similar device that they're changing to try to mask their actual identity.