Australian Government SMS Sender ID Registration Requirements
The Australian Communications and Media Authority (ACMA) is implementing a mandatory registration system for branded SMS sender IDs to reduce the prevalence of text message scams. Beginning July 1, 2026, any text message sent with an organization's name appearing as the sender (rather than a standard phone number) must be registered in the official SMS Sender ID Register to avoid delivery disruption.
Mandatory Registration for Branded Sender IDs
All businesses and organizations that use a branded sender ID—where the organization's name is displayed at the top of the message—must register that ID before July 1, 2026. This requirement applies to both domestic and international organizations sending messages to Australian recipients.
Registration paths vary based on the entity's legal status:
- Entities with an Australian Business Number (ABN): Must ensure their authorized contact or service of notice email address is current in the Australian Business Register (ABR) to complete registration.
- Entities without an ABN: Community groups, schools, and other non-ABN organizations are still required to register through a specific process for non-ABN entities.
- International Organizations: Global entities sending branded SMS to Australia must register to ensure their messages are not blocked or disrupted.
Impact on Message Delivery and Appearance
Failure to register a branded sender ID by the July 1, 2026 deadline will result in service disruptions. The ACMA has indicated that some text messages will look different to recipients starting July 1 as part of these anti-scam measures.
Messages typically fall into three categories under the new framework:
- Branded: Registered organization names.
- Unverified: Messages that do not meet the new registration standards.
- Phone Number based: Standard messages sent from a traditional mobile number.
Compliance and Restricted Terms
To prevent impersonation and fraud, the ACMA maintains a list of restricted terms that cannot be used as registered sender IDs. This ensures that scammers cannot register IDs that mimic government agencies or critical services.
For organizations that send messages on behalf of other entities, specific rules apply to ensure the transparency of the sender's identity. Telcos and message providers are also subject to specific industry rules regarding the management of the SMS Sender ID Register.
Enforcement and Context
This registration mandate is part of a broader crackdown on mobile number fraud. The ACMA has recently increased enforcement actions against telecommunications providers, with penalties totaling nearly $5 million over the last 18 months for violations of mobile number fraud rules.