What is Alphanumeric sender ID?
Also known as: Sender ID, Business name sender
An alphanumeric sender ID is a text name — up to 11 characters — that appears in place of a phone number when a business sends an SMS, so the message shows as coming from a brand rather than a number.
Sender IDs make messages instantly recognisable, which lifts open and click rates on marketing sends. The trade-off is that recipients cannot reply to a sender ID: replies need a dedicated number.
In Australia, sender IDs must be registered against the business that uses them. Registration protects brands from impersonation and is a condition of the ACMA's SMS Sender ID Register.
Alphanumeric sender ID: quick facts
- Maximum 11 characters, letters and numbers, no spaces
- One-way only — recipients cannot reply
- Must be registered to the business that sends under it
Texto and Alphanumeric sender ID
How to register your business name as an SMS sender in Australia.
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