Alphanumeric Sender ID

Your company name or brand displayed as the sender ID for one-way text messaging.

Alphanumeric Sender IDs must meet the following requirements:

• Send to supported countries.
• Register the Sender ID when required.
• Limit length to 11 characters.
• Include both upper- and lowercase ASCII letters, the digits 0 through 9, and the space character.
• Include alphabetic characters. They can't be numbers only.

You can add Alphanumeric Sender IDs to a Messaging Service. When you send SMS messages to a supported country, your Twilio Messaging Service sets your Alphanumeric Sender ID as the From parameter. When you send SMS messages to a country without Alphanumeric Sender ID support, Twilio uses a phone number from your messaging service.

To use Alphanumeric Sender IDs with your Messaging Service, turn on Alphanumeric Sender ID in the SMS Settings for your account.