What is best way to display a partial mobile number

Refer following links:

https://www.karansaini.com/fuzzing-obfuscated-phone-numbers/

https://www.alldigitaltricks.com/wp-content/uploads/2017/12/kotak-bank-change-mobile-netbanking.png

https://www.trickolla.com/2016/12/Register-Mobile-Number-With-Bank-of-Baroda.html

Use case at hand is to show partial mobile number to user: Like 'Continue with mobile number ending with * * * * * * 1 2 3 4'

Problem is we might have last 4 digit colide due to users have choice to select last 4 digit of mobile and we are showing multiple such options so to uniquely identify option we need some other mechanism.

' * * * * * * 1 2 3 4'

Options I am thinking are:

' 1 2 * * * * * * 3 4'

' * * * * 1 2 * * 3 4'

' 1 * 2 * 3 * 4 * 5 *'