what really exists in phreaking? I used to be interested in the mid-late 90s, but it seems it was all but dead by 2000 or so. Asterix seemed to keep things interesting for a bit, but I haven't heard about that in years.
In the last years it shifted mostly to tinkering with radio communication of all sorts. IoT etc. it's amazing what you can find out about factories and your general environment if you have a look at everything that's buzzing around... with mostly default passwords. :) but there are still interesting systems around just last week I found a 170 line isdn system still in use by a printing company... roughly 1mbit :D