International Calling Codes & How to Dial

About the International Calling Codes & How to Dial

Everything you need to call another country. Find a country code works both ways: type Germany to get +49, or +44 to see that it is the United Kingdom (and Guernsey, Jersey and the Isle of Man, which share it). For +1 and +7, the area code picks the exact country, so +1 876 is Jamaica.

How to call then gives the exact digits for your route: the exit code to dial in your country (00 from India, 011 from the US, 0011 from Australia), the country code, and the number without its trunk prefix — usually the leading 0. Type the number you want to call and it is checked and shown in E.164, international and national format, ready to dial from a landline or a mobile. The current time in both places is shown too, so you do not ring someone at 3 a.m.

Common uses

• Calling family abroad, or a hotel, airline or office in another country.
• Working out where a missed call or WhatsApp number is from (+971 → United Arab Emirates).
• Writing phone numbers on business cards, websites and forms in the international +44 format, or E.164 for apps and CRMs.
• Planning calls across time zones without waking anyone.

Exit code, country code, trunk prefix

An international call has three parts: the exit code (also called the international or IDD prefix) of the country you are calling from, the country code of the country you are calling, and the national number without its trunk prefix.

The ITU defines the trunk prefix as the digit or digits dialled before an area code for a call inside the country, and says it must not be dialled in an international call. In most countries it is 0 (UK 020 → +44 20), in the US and Canada it is 1, in Russia and Kazakhstan 8, and in Hungary 06. Some countries have none: in Italy, San Marino and Vatican City the leading 0 belongs to the number and stays (+39 06 …), as it does in Benin, Côte d’Ivoire, Gabon and the Republic of the Congo; Denmark, Norway and Singapore numbers are dialled as written.

On a mobile phone you can always press + instead of the exit code — the network turns it into the right prefix, which is why +44 20 7946 0018 works from anywhere.

Shared country codes

Some codes are shared. +1 is the North American Numbering Plan: the United States, Canada and 23 other countries and territories in the Caribbean, the Atlantic and the Pacific, told apart by their 3-digit area code (Jamaica 876 and 658, Bahamas 242 …). Between them you dial 1 + area code + number, like a long-distance call. +7 covers Russia and Kazakhstan, and +44 covers the UK, Guernsey, Jersey and the Isle of Man; calls between places sharing a code are dialled like national calls. Curaçao and the Caribbean Netherlands share +599 but are separate countries, so from a mobile use the full +599 format.

Where the data comes from

• Calling codes, exit codes and trunk prefixes, and number checking: Google’s open-source libphonenumber metadata (via libphonenumber-js 1.13.14), which is updated as countries change their numbering plans. Some countries have several exit codes (one per carrier): Brazil puts a two-digit carrier code after 00, and Colombia, South Korea and Taiwan have a code per carrier.
• Codes and their meaning: the ITU’s List of Recommendation ITU-T E.164 assigned country codes and Dialling procedures (international prefix, national (trunk) prefix and national number). The ITU lists are older (2016 and 2011) than the metadata, so where they differ the newer metadata is used — except for Tanzania and Uganda, whose metadata mixes the short codes for calls between Kenya, Tanzania and Uganda (005, 006, 007) into the exit code; there the ITU’s 000 is shown, and for Ukraine 00 without the old wait for a second dial tone.
• Time zones: the IANA time zone database (zone.tab, release 2026c); the current offsets and daylight saving times come from your browser.

Limitations

• Number checking tells you whether a number fits the country’s numbering plan, not whether it is in service or who owns it.
• Some neighbouring countries have special short codes for calls between them, and some operators use their own prefixes; if a call fails, use the + format from a mobile.
• Satellite phones and global services (+800, +870, +881 …) are listed for reference; call charges for them are usually high.
• Time zones are by country (and region for large countries); a few places within a zone do not follow its daylight saving rules.

Privacy

Everything runs in your browser: the phone number you type is checked on your device and never sent anywhere.