What is an SMS sender ID?

The SMS sender ID is the mobile phone number that is displayed to the user when she receives the text message. The SMS sender ID can be a standard phone number, a short code or an alphanumeric sender ID. The sender ID is used to identify who sent the message.

How long can a sender ID be?

The maximum length for phone numbers is 15 digits. The maximum length alphanumeric sender IDs is 11 characters. Short local phone numbers called short codes are between the length of 4-6 digits.

More information