nuisance caller

This number calls me and hangs up. It appears to be a landline. No idea why they keep calling and hanging up on my voicemail.

Have received calls from this number more than once, with voicemail (dead air); thanks all for weighing in--I can now block this number w/o hesitation.

I get several calls a month from this number but never speak with a live person. I have tried to block this number but for some reason it obviously is not working and this is getting really old.

This number calls my cell phone several times a week, but leaves no message. I have blocked the number, but my phone allows them to leave a message which is just air time.