Can Unicom mobile phone number roam internationally?

Unicom's mobile phone number can roam internationally. In order to ensure normal use during roaming in Taiwan, Hong Kong, Macao and international roaming, please first confirm the following contents:

1, roaming in Taiwan, Hong Kong and Macao and international roaming services need to be opened.

2. Confirm whether the mobile phone you use supports the frequency of the country or region you are going to.

3. Check whether you need to rent a plane in the country or region you are going to. (2G terminal users roaming to Japan and South Korea need to rent the corresponding models of mobile phones at the designated mobile phone rental counter; Other users don't need to change their phones. )

4. As the standards of power plugs in some countries are different from those in China, please prepare a multifunctional power adapter or ask the hotel to provide an adapter.