Hi,

Zitat von "Bartsch, Rene" <renne.bartsch@googlemail.com>:
> when charting the internet it would be useful to have an oversight
> about ISPs blocking ports.

This is a great idea and I would love to see this somewhere. But you
always have to keep in mind that this also depends on the firewall
rules that everybody has in his personal network and this does not
necessarily reflect the ISP settings.