Don't burn through that data plan! Customize with your network name and get a push notification when you drop off the network.
If
Disconnects from a specific WiFi network
This Trigger fires every time your Android device disconnects from a WiFi network you specify.
Then
Send a notification from the IFTTT app
This action will send a notification to your devices from the IFTTT app.
Explore more great ways to automate Notifications and Android Device