WhoCalledMeHQ
Choose a country: UKUnited Kingdom

Home›International dialling codes›+1

+1: which country is it?

+1 (also written 001) is the international calling code of United States, Antigua & Barbuda, Anguilla, American Samoa, Barbados, Bermuda…. Several countries or territories share this code.

Code
+1 · 001
Country or territory
United States
Example
+1 201-555-0123
Time zone
UTC−4

How to call United States

From the UK, dial 00 (or +), then 1, then the local number. Leave out the leading 1 of the local number.

A mobile number there looks like this in international format: +1 201-555-0123.

Local time zone: UTC−4.

Got a call from +1?

If you don’t know anyone there, be careful. A common trick is the one-ring call: the phone rings once so that you call back, and the call is charged at an expensive international rate.

Don’t call back unknown international numbers, never share codes or bank details, and search the full number here to see what other people have reported.