What Does 00 Mean in a Phone Number? International Dialing Explained

Name: What Does 00 Mean in a Phone Number? International Dialing Explained
Uploaded: 2026-07-18T00:00:00Z
Duration: 28 s
Description: Learn why 00 is used in phone numbers as an international dialing prefix to call other countries, with clear examples.

Learn why 00 is used in phone numbers as an international dialing prefix to call other countries, with clear examples.

Published Jul 18, 2026

Video transcript

00 in a phone number is commonly used as an international dialing prefix. When dialing internationally, dialing 00 followed by the country code allows you to place a call to another country. For example, to call the United States from Europe, you might dial 00 1 followed by the phone number.

Questions and answers

Why do international phone numbers often start with 00?
The prefix 00 signals an international dialing code from many countries, allowing you to connect calls to other nations by adding their specific country codes.
Can I use 00 to call any country from anywhere?
While 00 is a common international dialing prefix in many countries, some countries use different prefixes, like + or 011, so it depends on your location.
How do I dial a US number from Europe using 00?
From Europe, you dial 00 followed by the country code 1 for the US, then the local phone number to complete the international call.
What is the difference between 00 and + when dialing internationally?
The 00 is an international call prefix used in many countries, while + is a universal symbol that represents the international access code, which varies by country.