Can a mobile phone number handle multiple bank cards or multiple SMS reminders from the same bank?

Yes, different banks and different cards can use your mobile phone number as the reserved mobile phone number. There is no restriction, even the card of the same person in the same bank can use that mobile phone number. The mobile phone number is filled in by yourself when you apply for a card. The bank will not verify whether it is your card, but in this case, no one uses someone else's mobile phone number to apply for a card. It's okay.