I hope this is the right place to ask this, feel free to redirect me to anywhere else.
As title, here's an example of what I meant.
let's say the country is Switzerland with the country code of 41.
Is 4141xxxxxxx (41xxxxxxx) a possible number in international format? Is there any rules that prevent a number to start with the exact digit of their corresponding country code?
I tried to look the info up for quite a while but I can't find any info specificlly describing this case. Any help is welcome. (It'll be amazing if the info is cited with source as well so I can have a look too.