You can do pkgstats -dto see what data is being sent.
I can confirm that as well. I have opened a bug report https://bugs.archlinux.org/task/32058
@ mealejan, since it only happens with Arch Linux, I suspect it is because of systemd.You might try disabling predictable device naming of the network interfaces. Take a look here:https://wiki.archlinux.org/index.php/Co … vice_names