As most of Flash Global SIM and eSIMs do not have a number, checking your internet quota usage can be done directly from the settings page of your phone.
Here is a super-easy way to check your internet data usage on iOS and Android
iOS iPhone
1. Select Settings.
2. Select Cellular/ Mobile Data
3. Check your total usage. Note that this is the amount of data you have used- not your remaining quota.
Android
1. Go to Settings
2. Select Connections
3. Select Data Usage
4. Check your total usage. Note that this is the amount of data you have used- not your remaining quota.