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Alphanumeric SMS Sender ID Registration Guide

Follow the steps to register an alphanumeric SMS Sender ID.

notifyre_australia_flag_icon_024674a429 Region applicable: Australia

Notifyre supports Australian organisations to register alphanumeric SMS Sender IDs with the Australian Communications and Media Authority (ACMA), as required under the ACMA SMS Sender ID Register. Registering your Sender ID helps protect recipients from fraud and ensures your SMS messages clearly identify your organisation.
 

What is an alphanumeric SMS Sender ID?

An alphanumeric SMS Sender ID is a custom sender name made up of letters and numbers (up to 11 characters) that appears as the sender of an SMS message instead of a mobile number. For example, your SMS may display your brand or organisation name rather than a phone number, helping recipients instantly recognise who the message is from.
 

What’s changing?

From 1 July 2026, all businesses using alphanumeric Sender IDs must:

  • Register each Sender ID with the ACMA

  • Have the registration verified by an authorised ABN contact

  • Comply with ACMA’s naming rules

Unregistered Sender IDs may:
  • display to recipients as “Unverified”, or
  • be blocked by telecommunications providers.

sender ID registration example unverified
Example of a unverified sender ID message

Before you start

💡 We strongly recommend reviewing the SMS Sender ID registration checklist before submitting an application. This helps ensure your details are correct and can reduce delays during the approval process. To submit an alphanumeric SMS Sender ID application in Notifyre, you’ll need:
  1. Australian Business Number (ABN): If you do not have an ABN, contact Notifyre Support for guidance.
  2. Authorised contact details: These must match the authorised contact information listed on the Australian Business Register (ABR).
  3. myID login: A myID account (Standard strength) is required for ACMA identity verification during the registration process.

How to register an alphanumeric SMS Sender ID

  1. Login to your Notifyre account

  2. Navigate to Settings and click on Custom Sender ID
  3. Click Register New
  4. Choose Alphanumeric as the Sender ID type
  5. Enter the Entity Details
    1. ABN (Entity name will automatically populate from the ABN register)
    2. Webiste
    3. Business Address
    4. Business Phone Number
  6. Enter the Entity Contact Details for the authorised contact listed on the ABR. How to find the authorised contact on the ABR.
  7. Enter the Sender ID (2-11 characters, cannot start or end with spaces or underscores, cannot be numeric-only, must not contain prohibited words)
  8. Select a Valid Use Case
    1. Registered Business Name in the Business Names Register 
    2. Registered Company Name in the Australian Business Register 
    3. Registered Trademark in IP Australia's Trade mark Search 
    4. Registered Domain Name on WHOIS 
    5. There is an exception to the valid use case.
  9. Explain in a few sentences how you intend to use the Sender ID.
  10. Agree to the declaration and submit the application.
  11. The application status will change to 'In Progress'. 
  12. As part of the ACMA's requirements, your application will be reviewed by Notifyre and then submitted to the ACMA for their processing.
  13. After Notifyre has submitted the application, your business's main ABN contact will receive an email from ACMA to confirm the application. The SMS Sender ID Register is on the ACMA’s online portal ACMA Assist. Your main ABN contact will need to prove their identity using the Australian Government’s Digital ID app myID when logging on to ACMA Assist to view, confirm and revoke sender IDs for your organisation.
  14. Once your ABN contact has verified the SMS Sender ID application with ACMA, you will receive an email from ACMA & Notofyre upon approval or rejection.
  15. For ACMA approved registrations, the SMS Sender ID in Notifyre will automatically be updated to 'Ready For Use'. 
  16. For ACMA rejected registrations, the SMS Sender ID in Notifyre will automatically be updated to 'Rejected'. Depending on the rejection reason, you may be able to 'Edit'and resubmit an application.
  17. You can login and view the status of each SMS Sender ID application within your Notifyre Dashboard. View alphanumeric SMS Sender ID registration statuses.

ACMA will not process the application if your ABN main contact does not confirm. 

💡You must contact each SMS messaging provider that you want to send SMS messages with using alphanumeric SMS sender IDs to authorise them to send messages for you using your registered sender ID.

Explore our registration checklist or contact Notifyre Support for any assistance with SMS Sender ID registration.

 
 
 

Sender ID FAQs

Why is ACMA implementing changes?

Scammers often impersonate trusted organisations using fake SenderIDs like “AusPost” or “myGov”. To prevent impersonation and protect consumers, the ACMA is introducing a verified national register for all Sender IDs used in Australia. This will improve trust and significantly reduce SMS impersonation scams.

Will this affect numeric-only Sender IDs?

No. This only affects alphanumeric Sender IDs used by businesses.

Is there a cost to register?

ACMA has indicated there may be no fees initially, but final pricing has not been confirmed.

Can a non‑ABN entity register a Sender ID?

Notifyre is currently unable to support non-ABN holder registrations. Contact our team for more information.