International Dialing Codes

Country Calling Codes Made Simple

The authoritative directory of international phone calling codes for every country in the world. Search by country name, +code, or ISO to dial internationally in seconds.

Try “United Kingdom”, “+49”, or “AUS”

Countries & Territories
233
Regions Covered
5
Unique Calling Codes
203
Data Standard
E.164
View all 233 countries

How to Dial Internationally

International calling can be confusing. Here is the universal format to reach any phone number worldwide using the codes in this directory.

Find the country

Type the country name in the search bar above — e.g. "Germany" or "South Korea".

Note the calling code

The international dialing prefix is shown prominently — for Germany it's +49.

Dial internationally

Dial your international exit code (e.g. 011 in the US) + calling code + local number (drop the trunk prefix).

Example: Calling a London number from the US

Dial 011 (US exit code) + 44 (UK calling code) + 20 (London area code) + XXXX XXXX (local number). Drop the leading 0 from the UK number.

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Global Coverage

Complete ITU-T E.164 data for every UN-recognized country plus major territories and dependencies.

Rich Detail Pages

Each country page includes trunk prefixes, area codes, dialing tips, and ISO codes — all in one place.

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Frequently Asked Questions

What is a country calling code?

A country calling code (also known as an international dialing prefix or country phone code) is a telephone prefix that must be dialed before the national phone number when placing an international call. These codes are defined by the ITU-T Recommendation E.164 standard and range from 1 to 3 digits.

What is the calling code format?

International calling codes are always preceded by a "+" sign when written in international notation (e.g. +1 for the USA). When actually dialing, you replace the "+" with your local international exit code — 011 in North America, 00 in most of Europe.

Which country has the calling code +1?

The +1 calling code belongs to the North American Numbering Plan (NANP), which covers the United States, Canada, and many Caribbean nations. Individual countries within NANP are distinguished by their 3-digit area code.

What does the trunk prefix mean?

A trunk prefix (commonly "0") is a digit dialed before an area code when placing a domestic call within a country. When calling internationally, the trunk prefix is dropped. For example, a London number written as 020 7XXX XXXX is dialed as +44 20 7XXX XXXX from abroad.

How is this data sourced?

Data is based on the ITU-T E.164 standard, the official UN-maintained list of international telephone numbering plans. We cross-reference multiple authoritative sources and update regularly.