What is the country calling code for the United States?

+1. From abroad, dial your network’s exit code (or +), then 1, then the ten-digit US number (area code + local). US outbound exit is commonly 011 when digits are required instead of +.

Same code. +1 is the portable form for contacts and mobiles; 1 is what follows an origin exit prefix (for example 00 1… from many countries, or 011 1… from the US outbound pattern when dialing abroad).

Do I drop a leading 0?

No. US numbers do not use a removable trunk 0. After +1, keep the full ten-digit national number. Do not store +1 1… by doubling the country code with a long-distance 1.

How do I dial a US mobile from abroad?

From (202) 555-01XX, dial or save +1 202 555 01XX (or exit code + 1 202 555 01XX). Mobiles and landlines follow the same ten-digit NANP pattern.

Does +1 only mean the United States?

No. +1 is shared across the NANP (US, Canada, and other NANP territories). A +1 number is not automatically US — check the area code.

🇺🇸

United States Calling Code

United States of America

ISO USUSA

Last reviewed: Last reviewed: 2026-09-08
Reviewed by: Reviewed by countrycalling.codes editorial team

Popular routes

Browse all routes

Key Facts

International Calling Code: +1
Country Name: United States
Official Name: United States of America
Capital City: Washington, D.C.
Region: Americas
Subregion: Northern America
ISO 3166-1 Alpha-2: US
ISO 3166-1 Alpha-3: USA
International Exit Prefix: 011

United States Calling Code FAQ

What is the country calling code for the United States?: +1. From abroad, dial your network’s exit code (or +), then 1, then the ten-digit US number (area code + local). US outbound exit is commonly 011 when digits are required instead of +.
Is it +1 or 1?: Same code. +1 is the portable form for contacts and mobiles; 1 is what follows an origin exit prefix (for example 00 1… from many countries, or 011 1… from the US outbound pattern when dialing abroad).
Do I drop a leading 0?: No. US numbers do not use a removable trunk 0. After +1, keep the full ten-digit national number. Do not store +1 1… by doubling the country code with a long-distance 1.
How do I dial a US mobile from abroad?: From (202) 555-01XX, dial or save +1 202 555 01XX (or exit code + 1 202 555 01XX). Mobiles and landlines follow the same ten-digit NANP pattern.
Does +1 only mean the United States?: No. +1 is shared across the NANP (US, Canada, and other NANP territories). A +1 number is not automatically US — check the area code.

Related dialing guides

How to Dial United States

Saving the number in contacts

Start with +1, then use the reviewed national significant number. There is no separate domestic trunk digit to remove. The digit 1 may be used before the ten-digit number for long-distance dialling, but it is also the shared country code in international notation.

Calling from abroad

On a mobile, use the + form. If a network requires digits instead, replace + with that origin network's international prefix. United States's own standard exit prefix for outbound calls is 011.

Part of the North American Numbering Plan (NANP). Shares +1 with Canada and other NANP territories.

Calling a United States mobile

Add +1 before the ten-digit NANP number; do not remove any digit.

Domestic display: (202) 555-01XX
International display: +1 202 555 01XX

+1Country code: North American Numbering Plan
202Area code: Washington, D.C. example area
555 01XXLocal number: Fictional-use pattern

The 555-01XX range is shown as a fictional-use pattern rather than a subscriber number.

Calling a United States landline

Add +1 before the ten-digit NANP number; do not remove any digit.

Domestic display: (212) 555-01XX
International display: +1 212 555 01XX

+1Country code: North American Numbering Plan
212Area code: New York example area
555 01XXLocal number: Fictional-use pattern

Exceptions and Routing Notes

Common United States Formatting Mistakes

Assuming every +1 number is in the United States.
Adding both +1 and a separate 1 long-distance prefix.
Saving only seven local digits without an area code.

See all formatting errors Open the private format checker Read the E.164 format guide

Number Portability and Carrier Data

Mobile number portability means a prefix may not identify the current carrier. Treat carrier data as a timestamped lookup result, not a permanent property of the number.

Step-by-Step Calling Routes

These reviewed routes combine this country's numbering rules with the international-access rules used by the named origin.

Primary sources

National numbering plan: United StatesInternational Telecommunication Union. Verified 2026-07-19.
ITU-T E.164: The international public telecommunication numbering planInternational Telecommunication Union. Verified 2026-07-19.

See our editorial and sourcing methodology.

Other Countries Sharing +1

Calling Code

CountryUnited States

ISOUS / USA

RegionAmericas

Review statusReviewed 2026-09-08

More in Americas

Canada+1 Bahamas+1 Barbados+1 Anguilla+1 Antigua and Barbuda+1 British Virgin Islands+1 All Americas codes

Back to full directory