All you have to do is sign up, install the app and activate your subscription. If you often make calls to the United States from other countries, you can try a free service, like the one offered by the Rebtel International calling app. Add the US area code from the list below.Dial the international exit country code (or replace it with + on a mobile device).This way, you won’t have to add these details every time you make the call. When you save your American contacts to your phone, make sure to include this number as part of their phone number! Of course, don’t forget to add the area code, a three-digit number which designates the city you want to connect to, from the list below. You will add it to the beginning of any phone number you are dialing that’s in the US. Cheapest way to call the US from the UK.

To help you, we’ve made a list of all these codes, which you can find below this article. If you want to call the US, you have to keep track of the US country and area codes of each of these states and territories.

The United States of America is made up of 50 states and other territories.

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