Please note that Mike Radio is an unlicensed radio station, so it should be listed under 'PIRATES' and not under 'NETHERLANDS'.
Another Dutch station, Radio Europe (often using the slogan 'Radio Jong Europa') has also been broadcasting on shortwave without a license for several months. Currently on 6130 kHz. However, Radio Europa now has a license from the Dutch authorities.
I think, it is remarkable that the HFCC is coordinating frequencies for shortwave pirates (Mike Radio, Studio Denakker and - for several months also Radio Europe).
(Stig Hartvig Nielsen via HCDX ml)