Finding out country code

Using libphonenumber-js with ReactNative. In the phone memory, I have contacts like 51616777, etc. Is it possible to find what’s the country code, depending on the number using libphonenumber-js methods? I need to pass dynamic parameter instead of RU, depending on the number.

   let phoneNumberParsed = parsePhoneNumberFromString(contact.phoneNumbers[0].number, 'RU');

Thanks!

[catamphetamine]

I meant that if you’re passing a number to the parse function then it either must start with + or you must supply a country code.

[catamphetamine]

Without + there’s no country info.