Whenever I searched for anything similar it was not avaible in the EU. I think EU has no regulation on access to phone numbers. About the only thing that got regulated is emergency calls on 112. E.g. Germany has national regulation that non-residents need a special area code, which is not widely used and expensive to call to. Would not be surprised if it had also connectivity problems from various providers. But each country is completely different, so I wouldn't expect that anyone builds reasonable services based on phone numbers.