Blocking incoming phone calls - phone number is invalid

[wood1e]

hi 

How do I block a phone number that comes up with 'invalid phone number'? 

As it cannot be as someone phoned me  

Many thanks in advance

[Anonymous]

So do you want to to block private numbers?

And may i know the model of your Xperia device?

[wood1e]

Hi

It is a xz premium

I don't want to block private numbers I want to block numbers Sony deem to
be incorrect or not phone numbers

When they clearly are!

[Anonymous]

You can go to phone app> 3 dots on top right > settings> blocked numbers , and there  you can add numbers.

[wood1e]

Many thanks for that