What information should a user provide regarding their mobile number?

A mobile number should include the country code to ensure that it can be accurately dialed from anywhere in the world. Including the country code is essential, especially in a global context where users might be communicating across borders. This format helps avoid confusion and guarantees that the number directs the call or message to the correct geographic location.

In contrast, while digits or work numbers may also be relevant in certain situations, they do not universally apply to the requirement for providing a mobile number. The need to include the country code stands out as a primary and indispensable aspect of effective communication across different telecommunication networks.