Venntel Opt-Out & Do Not Sell

2. Enter your mobile device advertising identifier and press ‘Submit’ to opt-out of our use and disclosure of your mobile location data. The opt-out is device-specific, which means that you need to opt-out separately for each of your mobile devices.

If you reset your mobile device's advertising identification number through your device's privacy settings, you will need to opt-out again with the new number.

https://www.venntel.com/opt-out