International Country Codes: Complete Guide

What Are International Country Codes?

An international country code is a short numeric prefix assigned to each country or territory by the International Telecommunication Union (ITU). When you place a call from one country to another, you dial this code immediately after the international access prefix (or the "+" symbol on mobile phones) to route the call to the correct destination.

Country codes range from one to three digits. Larger or higher-traffic countries, such as the United States (+1) and the United Kingdom (+44), typically have shorter codes. Smaller nations may have two- or three-digit codes.

How International Dialing Works

To call any phone number in another country, you follow a standard format:

For example, to call a landline in London, United Kingdom:

• + replaces the international access code (011 from the US, 00 from most of Europe)
• 44 is the country code for the United Kingdom
• 20 is the area code for London
• 7946 0958 is the local subscriber number

When dialing from a mobile phone, you can always use the "+" prefix regardless of which country you are in. From a landline, you must dial your country's international access code first (for example, 011 in the US and Canada, or 00 in most European countries).

Complete List of International Country Codes

Below is a comprehensive reference of all international calling codes, organized by region. Click any country to see detailed dialing instructions, tips, and cheap calling rates.

All 223 country codes listed. Each country page includes dialing instructions, tips, and calling rates. View our calling rates for countries we serve.

Tips for Dialing Internationally