Every phone number in the world starts with a country calling code, the short plus-code prefix that routes a call across borders. This free Country Calling Codes Quiz turns those prefixes into a fast, mobile-friendly game: see a country and name its dialing code, or see a code and pick the country that dials it, across all 194 UN member states.
There are three ways to play plus a daily challenge. Easy mode is multiple choice, medium gives you a first-digit hint, and hard asks you to type the code. Typed answers accept +44, 44 or 0044, so formatting never costs you a point. A Speed Run counts how many you can name against the clock, and a Learn mode teaches the pattern behind the numbers.
The whole quiz runs in your browser with nothing to install and no sign-up. The daily challenge gives everyone the same ten countries each day, so you can compare your green-and-red result grid with friends.
How to play
- Daily Challenge: ten countries, the same for everyone that day, with a shareable result grid and a day streak.
- Country to Code: see a flag and country name, then pick or type its international dialing code.
- Code to Country: see a dialing code and choose the country that uses it. Only codes used by a single country appear here, so there is always one right answer.
- Speed Run: name as many codes as you can before the clock runs out.
- Learn mode: browse every country’s code and study the nine calling-code zones.
How many country calling codes are there?
The numbering plan is set by the International Telecommunication Union in Recommendation E.164. The first digit of every code places the country in one of nine world zones: 1 covers North America and the Caribbean, 2 is mostly Africa, 3 and 4 are Europe, 5 is Central and South America, 6 is Southeast Asia and Oceania, 7 is Russia and Kazakhstan, 8 is East Asia, and 9 is South and West Asia. Learn those nine buckets and you can often guess an unfamiliar code from its first digit alone.
Almost every country has its own code, but a few are shared. The United States and Canada both dial +1, and Russia and Kazakhstan both dial +7. The Caribbean adds a twist: nations such as Jamaica, the Bahamas and Barbados sit inside the +1 zone but each keeps its own three-digit area code, so they are written +1 876, +1 242 and +1 246.
Calling codes that surprise people
- Kazakhstan shares +7 with Russia, a holdover from the Soviet-era telephone network.
- Every Caribbean nation dials +1, the same zone as the United States and Canada, separated only by area code (Jamaica is +1 876, the Bahamas +1 242).
- Vatican City has its own assigned code, +379, even though many calls still reach it through Italy’s +39.
- The shortest codes such as +1, +7, +20 and +27 went to some of the earliest national telephone networks.
- North Korea (+850) and South Korea (+82) both sit in the East Asia +8 zone, one small prefix apart.
Where the data comes from
Every calling code and country fact in this quiz comes from the open mledoze/countries dataset (ODbL licence), which stores each country’s dialing prefix as a root and a set of suffixes. We combine them into the full code following ITU-T Recommendation E.164, then filter to the 194 UN member states. Two entries are pinned by hand: Vatican City to +379, and the Dominican Republic to its primary area code +1 809. Flag images are public domain. The quiz is fully client-side, so no data ever leaves your device.
Frequently asked questions
How many country calling codes are there?
There are around 190 distinct country codes among the 194 UN member states. Only two are shared between sovereign nations: +1 for the United States and Canada, and +7 for Russia and Kazakhstan.
What is the +1 calling code?
+1 is the North American Numbering Plan zone. The United States and Canada share bare +1, while Caribbean members each add a three-digit area code, so Jamaica is +1 876 and the Bahamas is +1 242.
How do I read a country calling code?
The leading digit tells you the world region (1 North America, 2 Africa, 3 and 4 Europe, 5 Latin America, 6 Southeast Asia and Oceania, 7 Russia and Kazakhstan, 8 East Asia, 9 South and West Asia). The remaining digits identify the specific country.
Does the quiz work on mobile?
Yes. The quiz is mobile-first and runs in any modern browser with no app to install and no sign-up. Typed answers accept +44, 44 or 0044, so formatting never costs you a point.
Is it free?
Yes, it is completely free and no account is required.