International dialing reference
+xx
An example calling code, shown only to illustrate the format.
Find the calling code, the prefix you dial first, and how the number is written. Every answer says where it comes from and where it stops.
Leaves your own country, so it depends on where you call from. A + on a mobile phone replaces it.
Identifies the destination. One to three digits.
The area code and the subscriber number.
What do you need?