+1 country code

Which numbers use +1

The +1 country code page covers the United States, American Samoa, Anguilla, Antigua & Barbuda, the Bahamas, Barbados and 19 more countries and territories. The main country on the page is the United States, officially the United States of America, with the ISO code US. Its residents are called Americans.

Location, language, currency and time

The United States sits in the Americas, in the North America subregion. Its capital is Washington D.C. English is the language listed for the country, and the currency is the United States dollar. The country spans several time zones, listed here with their UTC offsets: America/Adak at UTC-10:00, America/Anchorage at UTC-09:00, America/Boise at UTC-07:00 and America/Chicago at UTC-06:00.

Number format and calling over the internet

A United States mobile number in international format appears as +1 201 555 0123. The same layout applies when the number is written for a call or a message from another country: the +1 code comes first, then the area code and the subscriber digits.

Calls and messages to a +1 number can be made over the internet using a data connection. A softphone or messaging app on a phone, tablet or computer carries the call or message over the data link rather than a mobile voice plan. This suits people contacting family or contacts in the United States from another country, and people travelling who want to reach a United States number from a Wi-Fi or mobile data connection. The person receiving the call or message needs a working United States mobile number.

Slashtel sends prepaid mobile top-ups to these United States operators: T-Mobile, AT&T, Verizon, Metro, Cricket, Boost, Straight Talk, TracFone, Lycamobile, Simple Mobile, Page Plus, NET10, H2O and Red Pocket. Use the recharge page to top up a United States number for any of these operators. The top-up adds prepaid credit to the United States number so the line stays active for calls and messages, including those made over the internet.