Yes, but consumer ADSL/cable..are still..within the USA IP Address list block.
By blocking the entire continent, if you are paranoid, you won't be on that list.
I doubt they will engineer much of a solution for non-local markets e.g. UK instance catching USA Ip address, though in the end it is not that hard to move that metadata around.
They have many non-American endpoints, and local front companies, and they collaborate and pool data. They definitely had endpoints on a local ISP here, it was in the detail of some of the submissions that the IP they used was from the ISP.
Copyright monitoring firms have many endpoints that look like consumer ADSL/cable... because they are consumer connections.