They're still active. They got a nice blast of tone from my fax line today. Good thing for them they didn't call a number that's one off from mine in a single digit -- that would have reached the big US Federal Office building downtown.
Since they called a virtual incoming fax gateway service, I didn't have the chance to mess with their minds or to employ psyops against them to try to extract further information. But I still feel compelled to warn everyone here that they are still calling, even as I selectively forward their number to the wretchedness and squalor of the "this number has been disconnected" tar pit.
Called my aunt who is 84 and pressed her for personal information said she owned national grid electric more $$. She hung up on them and they called her back two more times. Need to stop these people. Dangerous for old people.