SMS Sender ID changes
Why this matters
SMS remains one of the most trusted and effective ways to reach customers.
Scammers target trusted channels, like SMS to exploit consumer confidence.
Sender ID registration will strengthen trust and protect your brand.
With simple registration, you stay visible, verified and compliant.
Key dates
Registration is now open.
1 July 2026: Enforcement begins with overstamping of messages with ‘Unverified’.
Enforcement means if an organisation attempts to send SMS or MMS messages with unregistered sender IDs from 1 July 2026, the sender ID will be replaced with ‘Unverified’, or the message may be blocked.
Register early to avoid disruption.
ACMA has advised submissions received after May 15 will likely not make the 1 July 2026 deadline.
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How you should prepare
Ensure they meet the ACMA’s updated requirements for use-case and permitted characters.
Audit your Sender IDs by:
Logging into your Kudosity account.
Navigating to ‘Send SMS’ under ‘Messaging'.
Reviewing your alphanumeric Sender IDs against your recent activity.
Webinar: Navigating the Government’s new SMS Rules
Formatting Rules
Length: 2 to 11 characters.
Characters: Letters (A-Z, a-z), numbers (0-9), and allowed symbols (e.g., +, -, &).
Start/End: Must start with a letter and not end with a space or underscore.
No Numbers Only: Cannot be composed solely of numbers.
No Spaces: Cannot have spaces or underscores at the beginning or end.
Case Insensitive: "ABC" and "abc" are treated the same.
What’s changing
All Australian Alphanumeric SMS Sender IDs must be registered with ACMA.
Examples of Alphanumeric Sender IDs
Brand names: Qantas, myGov, Amazon
Service names: CityClinic, MyBusiness
Government & finance: ATO, CBA, NAB
How registration works with Kudosity
We manage the complexity so you stay compliant.
Log in to your Kudosity account.
Navigate to the ‘Sender’ page from the navigation bar.
Click on the ‘Add Sender ID’ button.
Choose the alphanumeric Sender ID option.
Complete the form with your business details and use case.
Kudosity will review your information, and submit your Sender ID registration request to ACMA. If any further information is required or there are updates required, we'll get back to you within 72 hours.
You’ll then receive an email directly from the ACMA with instructions to set up your ACMA Assist account, if you haven’t already done so.
The ACMA will carry out an identity check.
If successful the ACMA will email you to advise you’re registered and you can send verified SMS with your registered alphanumeric Sender ID.
What you’ll need
Australian Business Number (ABN).
Official business or organisation name.
Authorised contact (must match ABN/ABR records).
Sender ID(s) to register.
Proof the Sender ID matches your business name, trademark, or domain.
Clear description (use case) of how the Sender ID will be used.
Current ACMA approval time: is up to 2–3 weeks from submission to the ACMA.
Pricing
Kudosity has waived all Australian Alphanumeric number set-up and monthly fees until 1 July 2026.
There may be fees in the future for using the SMS Sender ID Register. Any fees will be subject to future arrangements and will be communicated before their implementation.
Customers will be notified well in advance of any changes.
How Kudosity helps
Guided registration via your Kudosity account.
Kudosity validation to reduce ACMA rejections.
ACMA submission management.
Status tracking and ongoing support.
Resources
Automate message flows and customise SMS campaigns.
What our customers say
Within the first 90 minutes, there was a 4x increase in website visitors and sales increased by 59%. What's even more exciting is the significant growth in first-time customers and returning customers.
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