How to Write a Phone Number in International Format

by Ma Picard

When sharing your phone number with someone in another country, you must give them more information than just your local phone number. You will need to know your country code as well as your area or city code and phone number. The number of digits in the local phone number will vary from country to country. The format for writing them has been standardized.

Researching Your Codes

Find your country code at These codes range from 1 to 4 digits. Some countries share the same code. The country code for the United States is 1. France's country code is 33.

Locate your city code at or some similar website. Some small countries do not use city or area codes; large countries will have hundreds of different codes. There are more than 300 area codes in use in the United States; France has five regional codes and 28 city codes in total.

Identify the local phone number. The number of digits will vary from country to country. In the United States, a local phone number is seven digits. A local phone number in France is eight digits.

Write the complete international phone number. A United States phone number would be written: 1-608-222-3333. A phone number for Paris, France, would be written: 33-1-22-33-44-55.


  • In order to dial an international phone number, you also must know your International Direct Dialing number (IDD). This is the code required to dial from your country to another country and can also be found at

Items you will need

  • Country code
  • City or area code
  • Local phone number

About the Author

Ma Picard began writing professionally in 1995. She has been published in various media, both print and online. Writing topics include health and wellness, literature, family issues, gardening and simplicity. Her work appears on eHow, One Healthy Lifestyle, North Valley Magazine, and several other websites. With experience in an ever-growing variety of fields, Picard writes to share her knowledge with the world.

Photo Credits

  • cell phone image by Alexey Klementiev from