United States 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?
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 MVP dataset.
Use the Dial Builder to paste your number and get the exact dial string.
Examples
- national: (415) 555-2671
- international: +1 415 555 2671
Notes
- The US uses the North American Numbering Plan (NANP) country code +1.
- Domestic dialing rules vary by area; internationally you generally dial +1 followed by the 10-digit number.
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?
The country calling code for United States is +1.
How do I call United States 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 internationally?
United States does not generally use a trunk prefix field in this MVP dataset, but formatting varies; use the dial builder to normalize your specific number.