nuisance call

Which is most common?
1. crank (telephone) call
2. prank call
3. junk call
4. nuisance call
5. unwanted call
Thank you.

They're not the same- a prank call is someone playing a joke, not trying to sell you something you don't want. In BrE, I haven't heard 'crank call'. ;-)

Thank you very much, tdol.