United States of America calling code: +1
The short answer is +1. The useful answer is: what do you dial from your country, and what should you do with leading zeros?
Dialling notes for United States of America
The United States uses calling code +1 (NANP). +1 is shared across multiple countries/territories, so the area code is essential for identifying the destination.
911 is the standard emergency number in the United States.
Emergency numbers can vary by region/provider — if you’re travelling, check locally when possible.
Tips
- US numbers are commonly written as (AAA) BBB-CCCC. In international/E.164 format this becomes +1AAABBBCCCC.
- +1 is shared (NANP). If you only have “+1 …” without context, you can’t always infer the country/territory.
- For click-to-call links, prefer tel:+1… without spaces for maximum compatibility.
Common mistakes
- Assuming +1 always means the USA (it can also be Canada and other NANP regions).
- Dropping the area code (required for most calls).
See also: calling code +1
What to dial (quick guide)
- Start with your exit code (international call prefix), or just use + on mobiles.
- Dial 1 (the country calling code).
- Dial the national number (often with the domestic trunk prefix removed).
Trunk prefix note: none listed for this country in the dataset yet.
Use the Dial Builder to paste your number and get the exact dial string.
Examples
No examples yet.
Common routes
Jump straight into the dial builder:
- Call from GB to US (exit code 00)
- Call from CA to US (exit code 011)
- Call from IE to US (exit code 00)
- Call from FR to US (exit code 00)
- Call from DE to US (exit code 00)
- Call from ES to US (exit code 00)
- Call from IT to US (exit code 00)
- Call from AU to US (exit code 0011)
- Call from IN to US (exit code 00)
FAQ
What is the country calling code for United States of America?
The country calling code for United States of America is +1.
How do I call United States of America from another country?
Dial your international exit code, then 1, then the national number. In mobile-friendly format you can usually dial +1 followed by the national number.
Do I drop a leading 0 when calling United States of America internationally?
United States of America does not have a trunk prefix listed in the dataset right now, but formatting varies; use the dial builder to normalize your specific number.
Is +1 always the United States?
No. +1 is part of the North American Numbering Plan and is shared by multiple countries and territories (including Canada and others).