CompuServe Classic finally succumbs: CompuServe was one of the very earliest commercial dial-up bulletin board systems, well known for its "CB radio" chat program, which worked much like IRC. I was a CompuServe user back in 1979, with a 9 digit (70000,0000 format) ID. Exciting, heady days when one stuck a phone handset into an acoustic coupled 110-baud modem connected to your character-based 1 MHz computer.
IF you were still a classic user, you can convert your email over.