Some guy in the UK did this. It's fairly hard to manage however, because there is a lot of regulations around his legal requirements i.e. needs to disclose that

Some guy in the UK did this. It's fairly hard to manage however, because there is a lot of regulations around his legal requirements i.e. needs to disclose that it's a paid number, etc. He make a bit of sidecash off it and a surprising number of spam callers are happy to pay.