Request to remove comment of phone number

Just had a call from this number to my mobile. Operative was very pushy and unwilling to be put off or given no for an answer. Ended up hanging up on them.
However I at least find out how he got my number: when I commented that I had no idea how he had (I'm very careful about not letting 3rd party companies get my contact details) he said it was sold to his employer by an outfit called Liquid11.