1. Go to Settings > General > About
2. Scroll down to view the "Carrier Lock" section
3. Your phone is unlocked if you see: “No SIM restrictions”

If there is any other message in the “Carrier Lock” section or you receive an error message showing “you can only install connectivity services from another carrier/operator”, it means your iPhone is locked and you are not able to use a SIM or eSIM from Ride Mobile or any other carrier.  You need to contact your carrier to request an unlock. Only your carrier can unlock your iPhone. Usually, you can request an unlock on your carrier’s website. Check back with your carrier to see the status of your request as it may take a few days to complete.

If your device was just unlocked, your carrier may have disabled eSIM support for a period of time for security or other reasons.

Here are a few links that might help you determine if your device is unlocked