How to call the UK when abroad?

Calling a UK mobile number from abroad

If you need to reach someone in the UK while you are traveling outside the country, the process is pretty straightforward. You just have to tweak how you format the phone number.

Back home, standard UK mobile numbers are 11 digits long and almost always start with 07, such as 07700 900123. However, when you are calling from abroad, you need to drop that initial zero and replace it with the UK's country code: +44.

That means your example number changes to +44 7700 900123 (or 0044 7700 900123, depending on your provider). Just make sure to include the plus sign or the correct international prefix before the 44, or your call won't connect!