Do I still have a SIM card number with an eSIM? Where can I find this?

Yes, an eSIM also has a "SIM card number".

iOS: you can find the SIM card number in the device in which the eSIM is used:

• Open ‘Settings’ > ‘General’ > 'About'
• The SIM card number is displayed the same as the ICCID number.

Android:

• Do you have a subscription? Your My Viking account number is a replacement for your SIM card number.
• Do you have a prepaid card? Please contact our helpdesk.