Q&A for How to Call the United States From the United Kingdom

You'll use the same procedures above to text a U.S. phone number from the UK. Input the international dialing code (00), country code (1), and U.S. phone number including area code when you send the text message.

To call a phone number in England, Scotland, Northern Ireland, or Wales from the United States (the reverse of this article), check out our wikiHow articles on calling the UK from the U.S. and calling the UK in general.

You will follow the instructions above for dialing a U.S. number from a UK phone, no matter where you are. However, it's likely that a UK mobile phone will not be active in the U.S. unless you have an international mobile plan set up, or you get a local U.S. SIM card plan for the phone. If you are using a U.S. SIM service, you'll dial another U.S. number normally, without the "00" and "1" required for making an international call.

The operating system does not affect the call; it depends on whether your phone service provider supports international calls.