From 1 July 2026, businesses that send SMS messages using branded sender IDs in Australia will need to register those sender IDs under the ACMA’s new SMS Sender ID Register.
It’s a major change designed to reduce SMS impersonation scams — and if your business sends SMS alerts, reminders, authentication codes, marketing campaigns, or support notifications using a sender ID like “MyBrand” instead of a phone number, it’s important to understand what this means for you.
At Enfonica, we’re helping businesses prepare early and register their sender IDs before the deadline.
What is the SMS Sender ID Register?
The SMS Sender ID Register is a new system introduced by the Australian Communications and Media Authority (ACMA) to help protect businesses and consumers from SMS impersonation scams.
Scammers commonly send fraudulent SMS messages pretending to be trusted organisations such as banks, delivery companies, government agencies, or service providers. Because sender IDs can currently be spoofed, it can be difficult for consumers to tell whether a message is legitimate.
The new register introduces verification and accountability for sender IDs used in Australia.
From 1 July 2026:
- Only registered sender IDs can be used as verified branded senders
- Messages sent using unregistered sender IDs will appear as “Unverified” on mobile devices
- Unverified messages may be grouped alongside suspected scam messages
- Customers may become less likely to trust or engage with those messages
The goal is simple: make it easier for people to recognise legitimate business messages and harder for scammers to impersonate trusted brands.
What is a sender ID?
A sender ID is the name that appears as the sender of an SMS message instead of a phone number.
For example: MyBrand
Many businesses use sender IDs for transactional messaging, appointment reminders, two-factor authentication, support notifications, and marketing campaigns.
If your business currently sends SMS messages from a branded name rather than a mobile number, you’ll need to register those sender IDs. If you only send SMS messages from standard phone numbers, you do not need to take any action.
Why should you register your sender IDs?
Registering your sender IDs helps protect your brand and your customers.
Without registration, your SMS messages may appear as “Unverified” after 1 July 2026 — reducing trust and potentially impacting delivery engagement and customer response rates.
For many businesses, SMS is now a critical communication channel. Whether you send appointment reminders, verification codes, outage alerts, delivery updates, or marketing campaigns, maintaining sender trust is increasingly important.
Registering with Enfonica
Registrations for the SMS Sender ID Register are now open, with enforcement beginning on 1 July 2026.
If your business uses branded sender IDs, it’s recommended that you prepare and register early to avoid disruption to your SMS communications.
Businesses can register multiple sender IDs where there is a legitimate use case, including separate sender IDs for support, alerts, or authentication messages. Multiple organisations may also be able to register the same sender ID where there is a valid use case.
International organisations can also register sender IDs through Enfonica.
As part of the registration process, ACMA will send a verification email to confirm your identity and verify you’re authorised to act on behalf of your organisation. If a registration is rejected or later revoked, both you and Enfonica will be notified.
Enfonica can help businesses register and manage their sender IDs ahead of the July 2026 deadline, making the process as straightforward as possible for customers preparing for the upcoming changes.
Get ready
The introduction of the SMS Sender ID Register is one of the biggest changes to business SMS messaging in Australia in recent years.
Businesses that prepare early will be in the best position to maintain trusted communications and protect their brand from impersonation.
If you’d like help registering your sender IDs or understanding how these changes affect your SMS services, get in touch with the Enfonica team.
