Regex for phones at Belarus

Question

I use masked input in browser and I want to use regex inside html5 attribute on input field - pattern. Phone number example:

+375 (33) 302-66-60

Now I have regex:

^\D*(?:\d\D*){12,}$

But I want to check codes inside (). Now in Belarus we have only four possible code: 17, 29, 33, 44.

I will add correct answer to the library of regex at regex101.com for the keywords Belarus and phone. Thank you for answer.

Answer 1

I would probably go with something along the lines of

^\+375 \((17|29|33|44)\) [0-9]{3}-[0-9]{2}-[0-9]{2}$

This regex captures the national code +375 if you want to make it optional, you could always put it in parenthesis and add a ? after.

Answer 2

I would use this snippet

^+375 ((17|29|33|44)) [0-9]{3}-[0-9]{2}-[0-9]{2}$

^\+375 catches the country calling code (17|29|33|44) catches the four different area codes and [0-9]{3}-[0-9]{2}-[0-9]{2}$ the rest.