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Australia SMS Sender ID Register (Australia)

This page explains how Engage Hub handles the ACMA SMS Sender ID Register for customers sending text messages to Australian recipients.

From 1 July 2026, all alphanumeric Sender IDs used to send SMS to Australian mobile numbers must be registered with the Australian Communications and Media Authority (ACMA) under the Telecommunications (SMS Sender ID Register) Industry Standard 2025. Unregistered Sender IDs will be replaced with “Unverified” on recipients’ devices.

Engage Hub’s role

Engage Hub is an approved participating telco under the ACMA SMS Sender ID Register. We register Sender IDs on behalf of our customers through two pathways depending on your entity type.

AUSTRALIAN ENTITIES (ABN HOLDERS)

Originating telco: Engage Hub acts as your originating telco, submitting Sender ID registrations directly to ACMA via the national register on your behalf.

INTERNATIONAL / NON-ABN ENTITIES

EMSP via certified telco partner: Engage Hub acts as an Electronic Message Service Provider (EMSP) through our certified telco partner, who submits registrations to ACMA on your behalf.

Pathway 1 — Australian entities (ABN holders)

  1. Contact us — Advise us of the Sender ID(s) you use to send SMS to Australian recipients.
  2. ABN verification — Your Sender ID must align with a registered business name, company name, trademark, or domain name associated with your ABN. Ensure your authorised contact or service of notice email in the Australian Business Register (ABR) is current before we submit.
  3. Registration submission — Engage Hub submits your Sender ID registration to ACMA via the national register.
  4. ACMA verification — ACMA will contact you directly via your ABR email address to verify the registration. You must complete this step to finalise approval.
  5. Confirmation — Once approved, Engage Hub will confirm your Sender ID is registered and active on the register.

Pathway 2 — International / non-ABN entities

  1. Contact us — Advise us of the Sender ID(s) you use to send SMS to Australian recipients and your entity details.
  2. KYC / identity verification — Engage Hub will collect identity and use-case information from you to satisfy the Know Your Customer (KYC) requirements of our certified telco partner.
  3. Registration submission — Engage Hub submits your registration to ACMA via our certified telco partner.
  4. Confirmation — Once approved, Engage Hub will confirm your Sender ID is registered and active on the register.

How we handle sender ID messages

In accordance with Section 27(3) of the Telecommunications (SMS Sender ID Register) Industry Standard 2025, Engage Hub publishes the following information regarding how sender ID messages are handled for both end-users and account holders.

REGISTERED SENDER ID

SMS messages sent with a Sender ID that is registered on the ACMA SMS Sender ID Register will be delivered to Australian recipients with the registered Sender ID displayed as normal at the top of the message.

UNREGISTERED SENDER ID

SMS messages sent with a Sender ID that is not registered on the ACMA SMS Sender ID Register will have the Sender ID replaced with “Unverified” on the recipient’s device. Engage Hub strongly encourages all customers sending branded SMS to Australian recipients to complete registration before 1 July 2026.

Contact us

If you have questions about Sender ID registration or need to begin the registration process, please contact your Engage Hub account manager or email us at:

operations-au@engagehub.com