Today the console limits the user to 4 IP Prefix Sets per service policy. So for example if you have call centers in the Philippines and other countries and want to allow them through based on IP range instead of allowing the entire country you can create an IP Prefix Set and add it as an allowed IP list. This lets specific IP in despite them being from a country that is otherwise blocked. But you are only allowed to associate 4 such lists to a policy. In our case we desire to name the sets by the company that runs the call center, as we have more than 4, we are unable to do this so our only option is to lump them together. While the configs need to have a limit to avoid the user from adding so many as to cause a software issue, it seems the max could reasonably be around 100 instead of 4. 4 seems like an arbitrarily low maximum.