I disabled Apple Push Notification Service but it's still attempting to connect to Apple servers I disabled the service as per the instructions on this page: 
How to disable Apple Push Notification Service (apsd) on OS X 10.8? 

Yet this service is still running at startup!

How do I disable it once and for all?

Edit: I'm using Mojave
Found this googling around:  


  If you don't use FaceTime, put this in a Terminal window to get rid of apsd permanently: "sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.apsd.plist"


This will unload apsd from launchctl (the process that launches it at startup), but you'll still need to kill now.