Legal Requirements for SMS in Australia 

Mobile country code (MCC)

• 505

International dialing prefix:

• 61

Major carriers:

• Optus
• Telstra
• Vodafone

CLiX supported:

• Long Code - Yes
• Short Code - No
• Sender ID - Fully dynamic. No pre-registration is required.

One-way communication - Yes

Two-way communication - Yes (via long code or CLiX shared numbers).

Opt-in requirements - Customer consent is a must for sending SMS messages.

Opt-out requirements - STOP keyword must be included for contacts to opt-out of receiving messages.

Message content - Include clear and accurate information about the person or business responsible for sending the SMS message.

Message format supported:

• Unicode - Yes
• Concatenated messages - Yes

Delivery receipts (DLR) supported - Yes

 Useful regulatory links:

• Australian Communications and Media Authority - www.acma.gov.au

Telecom Regulations - https://www.legislation.gov.au/Series/F2001B00124