Signal & Syntax · Numbers and formats
What Is E.164?
E.164 is the ITU-T standard for international phone numbers. An E.164 number has up to 15 digits, written after a plus sign.E.164 is the ITU-T standard for international phone numbers. An E.164 number has up to 15 digits, written after a plus sign.E.164 is the ITU-T standard for international phone numbers. An E.164 number has up to 15 digits, written after a plus sign.
Also calledE.164 format · international phone number format
Example
07911 123456 → +447911123456
E.164 in Practice
E.164 strips everything a person adds when dialing at home. Spaces, brackets, dashes and the E.164 strips everything a person adds when dialing at home. Spaces, brackets, dashes and the E.164 strips everything a person adds when dialing at home. Spaces, brackets, dashes and the trunk prefixtrunk prefix all go. The result is one string that routes the same way from any country. APIs, CRMs and dialers store E.164 so two copies of one number match. all go. The result is one string that routes the same way from any country. APIs, CRMs and dialers store E.164 so two copies of one number match. all go. The result is one string that routes the same way from any country. APIs, CRMs and dialers store E.164 so two copies of one number match.
Where ScoreMachine Fits
Related Terms
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
Upload a file in a free workspace, or walk through your use case with our team.