Signal & Syntax · Numbers and formats
What Is an International Prefix?
An international prefix is the code dialed to leave the home country's network. The UK, EU and UAE use 00, and the US and Canada use 011.An international prefix is the code dialed to leave the home country's network. The UK, EU and UAE use 00, and the US and Canada use 011.An international prefix is the code dialed to leave the home country's network. The UK, EU and UAE use 00, and the US and Canada use 011.
Also calledexit code · IDD prefix · international access code
Example
00 44 7911 123456 → +44 7911 123456
International Prefix in Practice
The international prefix comes before the The international prefix comes before the The international prefix comes before the country calling codecountry calling code on an outbound international call. The prefix changes with the country the caller dials from. on an outbound international call. The prefix changes with the country the caller dials from. on an outbound international call. The prefix changes with the country the caller dials from. E.164E.164 replaces the prefix with a plus sign, so one written number works from anywhere. A stored number never includes 00 or 011. replaces the prefix with a plus sign, so one written number works from anywhere. A stored number never includes 00 or 011. replaces the prefix with a plus sign, so one written number works from anywhere. A stored number never includes 00 or 011.
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Read the Guide
Guide
E.164 Phone Number Format Explained
The parts of an international number and how to convert a list. Read the guide →Run the Checks on Your Own List
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