Erratic Spotify Connect device list

[AlexBand]

I've got an NAD 7050 at home that works perfectly wih Spotify Connect. However, I'm at work now and I still see the NAD in my Spotify Connect devices list both on my Mac and my iPhone. I can even select it and it'll connect. Everything seems to indicate it's playing; no idea if it actually does though, kinda hard to check. 

Isn't Connect supposed to be confined to my LAN? How is the devices list determined?

[MattSuda]

Spotify connect will allow you to control any Spotify app that is connect to your account, even if not on the same LAN.

Not sure why it would still show a receiver or other audio device though, as those are limited to your LAN.

For example:

If I have an iPhone across the world that is signed into my account, I can control what is playing on it from my iPad with the Spotify app.

Usually when you are not connected to a LAN, a receiver or other device is not supposed to show up.

Not exactly sure what is going on in this case.

[bufflo]

The same thing is happening right now for me.  My friend's receiver is showing up in the list on a device that has never been connected to his LAN!  So I guess the list is stored in Spotify's "cloud"...