When the recipient receives a call, their carrier is responsible for displaying the assigned caller name by querying the appropriate databases containing CNAM data entries. These databases are known as CNAM repositories and collectively referred to as the Line Information Database (LIDB). A CNAM can only contain letters, numbers, periods, commas and spaces.A CNAM cannot start with a number, it should begin with a letter.The CNAM of a number can be represented as a string of text no longer than 15 characters and presented in uppercase letters as an industry standard. CNAM is a feature in the United States public telephone network that identifies an incoming caller by a personal or business name associated with the calling party. Why are my calls displaying a SCAM/SPAM label?ĬNAM stands for Caller ID Name.Does caller ID lookup (CNAM) work for all Twilio phone numbers?.How can Twilio help correct CNAM displays?.Why is my caller ID name (CNAM) displaying incorrectly?.

Is there a fee or added charge related to CNAM?.What is the difference between carriers and CNAM Databases (LIBD)?.How do I update the Caller ID Name (CNAM) on my numbers?.Twilio supports Caller ID name (CNAM) changes and lookups for Twilio owned United States (US) numbers.

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