Depending on the investigation, that can start off our investigation. Where we run into some issues is in establishing who might be in possession of that information. It might be a chain of providers that has it.
What can hamper an investigation as well would be, for example, when you have a reseller of IP services, and this larger provider sells its services to another provider, which resells its services to a web host, for example. According to the information you have, it belongs to the larger provider, but if you write a production order to the larger provider, by the time you receive a response, they might say that in this case, it is actually the smaller provider that has the information you're looking for, which would lead to another production order and so on.