I have received several calls from this number with no voicemail left for me to follow up on. The kicker is that I am already a Sirius/XM subscriber with two active vehicles. They should be able to reach me in another way. I don't pick up calls from numbers that I do not know.
It's Sirius/XM. I just bought a new car and it came with a free trial. I hung up the first time they called me 2 weeks ago and they have called every single day since then!