Is it possible to create a mask to handle non-north american phone numbers?

Question

For north american phone numbers, (999) 999-9999 works pretty well for an input mask.

However, I can't find a good example that will handle non-north american numbers. I know that the number of digits can vary, so other than restricting it to digits only, is there a good example anywhere?

Answer 1

There is no generic mask, really: There are too many combinations.

The only thing that is fixed is the international country code, usually prefixed by +.

According to the Wikipedia Article on telephone numbering plans, most countries conform with the E.164 numbering plan.

If I read E.164 correctly, you can safely make the following assumptions:

• Country code: 1-3 digits

• Network / Area code and Number: Up to 19 digits

I would ask for the country code, and have the "area code + number" field as a 19-digit input.

Answer 2

You can deduce the country code with a simple RegEx such as:

^(?:(?:0(?:0|11)\s?)|+)([17]|2([07]|[1-689]\d)|3([0-469]|[578]\d)|4([013-9]|2\d)|5([1-8]|[09]\d)|6([0-6]|[789]\d)|8([12469]|[03578]\d)|9([0-58]|[679]\d))

Followed by

(([\s\(\).-]{0,2}\d){4,13})$

to extract the national number.

For validating the national number length and validity, you'd need libphonenumber or similar.

The long RegEx above allows +, 00 or 011 before the country code and a selection of punctuation in the number which will also have to be stripped.