How can you call London from Taiwan?

You can call London from Taiwan by dialing the following:

1. Exit code: Dial the exit code for Taiwan, which is 886.

2. Country code: Dial the country code for the United Kingdom, which is 44.

3. Area code: Dial the area code for London, which is 20.

4. Local number: Dial the local phone number in London.

For example, to call a landline in London from Taiwan, you would dial 886-44-20-12345678. To call a mobile phone in London from Taiwan, you would dial 886-44-7912345678.