How to register sender IDs
Businesses and organisations can register sender IDs via their telco from 30 November 2025.
To register sender IDs on behalf of your customers, you must be an originating telco that has been approved as a participating telco (including a certified telco).
If your customer does not have an Australian Business Number (ABN) (for example, a community group, school, or international organisation or agency), you must be a certified telco to register sender IDs and send messages on their behalf.
Through the register dashboard, you can:
- initiate, manage and review the status of sender ID registrations from businesses and organisations
- initiate, manage and review the status of sender ID registrations on behalf of businesses and organisations.
User guides
The following user guides explain how to access the register and step you through the process of registering sender IDs:
- SMS Sender ID Register: User guide for telcos – for participating telcos.
- SMS Sender ID Register: User guide for certified telcos – for certified telcos.
Registering sender IDs for international organisations
International organisations can register sender IDs through either:
- a certified telco
- an international partner of a certified telco.
Certified telcos can partner with international telcos (including international message providers).
There must be a written agreement between the certified telco and international partner. The agreement must require all the required checks to be completed, including establishing that the international organisation has a valid use case for each sender ID it wants to use.
Scenario 1
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As the certified telco, you are responsible for the registration. Refer to section 13 of the Telecommunications (SMS Sender ID Register) Industry Standard 2025 for more information.
Scenario 2
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If you are a participating transiting or terminating telco and you receive a message directly from any international telco, you must overstamp the sender ID for that message with ‘Unverified’ – even if the sender ID is registered.
If you are a certified telco and you receive a message from an international telco that is not your partner, or you receive a message from one of your international partners with a sender ID that is not registered, you must replace the sender ID with the word ‘Unverified’ before sending the message.
Fees to use the register
There may be fees in future for using the SMS Sender ID Register. Any fees will be subject to future arrangements and will be communicated before their implementation.