Am I being pranked about HIV?

I live in NY and ive recently been getting calls from a 406 number leaving voicemails saying that my last sexual partner has HIV Positive, they had my full name, they also some how got my house number and left me a message saying i have to get checked out to make sure i have no diesease. But they dont leave a call back number or a place to go to, when i call the number from caller id it says "would you like to be removed from calling list", Is this like a prank or telemarketer or something? Making me go get tested now...