How do you call a UK mobile from in the US?

To call a UK mobile number from the US, follow these steps:

1. Dial the exit code for the US, which is 011.

2. Dial the UK country code, which is 44.

3. Dial the mobile number, including the area code (without the leading zero).

For example, to call a UK mobile number with the area code 020 and the mobile number 123456789, you would dial: 011 44 20 123456789.

Note: Some mobile operators in the UK may have different area codes. To find the correct area code, you can refer to a list of UK area codes or check the operator's website.