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Alphanumeric SMS Sender ID Register

Effective 1 July 2026, all alphanumeric Sender IDs used for business SMS messaging in Australia must be registered.

The Australian Communications and Media Authority (ACMA) introduced a mandatory national register for all alphanumeric SMS Sender IDs used to send messages to Australian recipients.

This change is designed to reduce SMS impersonation and fraud by ensuring that Sender IDs are verified and traceable to legitimate organisations.

What changed?

From 1st July 2026, businesses using alphanumeric Sender IDs are required to:

  • Apply to register each alphanumeric Sender ID with the ACMA via their service provider
  • Ensure all Sender IDs comply with ACMA format and valid-use case requirements
  • Complete the ACMA approval via your ABN holder's authorised contact using their myID. 

Impact of non‑registration

Alphanumeric Sender IDs that are not registered via the ACMA and your SMS service provider will be sent to recipients with the from name of “Unverified”. 

This may result in reduced message trust, delivery issues, or service disruption.

Why did the ACMA introduce this requirement?

SMS scams frequently involve impersonation of trusted organisations using misleading Sender IDs (for example, names resembling government agencies or well‑known brands).

To address this, ACMA implemented a verified Australia-wide register of Sender IDs.

This initiative aims to:

  • Protect consumers from SMS impersonation and fraud
  • Increase trust in legitimate business messaging
  • Improve accountability across the SMS ecosystem

How to register your alphanumeric SMS Sender IDs

Existing or new GoFax accounts can proceed to register their required SMS Sender IDs at any time. 

Before logging in and starting your required application/s, we recommend reviewing our registration checklist for fast application processing. 

Explore SMS Sender ID Register FAQs