Mobile operators will need to publish standardised mobile network coverage maps under new rules introduced today by the Australian Communications and Media Authority (ACMA).
Under the Telecommunications (Mobile Network Coverage Maps) Industry Standard 2026 mobile providers must by 30 June 2026 publish clear maps with 4G and 5G mobile coverage across Australia in one of four categories - good, moderate, basic or no coverage.
ACMA Chair Nerida O'Loughlin said the introduction of standardised coverage maps for the first time in Australia would help consumers make more informed decisions.
"Mobile providers make available network coverage maps, but they are measured and presented differently. We know that consumers are frustrated that, as a result, they can't make any meaningful comparison between them.
"These new rules will ensure every carrier is giving the public a like-for-like comparison of service coverage in any location across Australia," Ms O'Loughlin said.
The maps will be based on predictive modelling and provide consumers with plain English descriptions of what good, moderate and basic mobile coverage mean. For example, 'good' coverage means you can expect a high-quality and seamless connectivity across voice, SMS and data communications.
In areas shown as having 'no coverage', the ACMA acknowledges that people in some locations may still be able to make calls and send SMS, but overall service is expected to be very limited, inconsistent or non-existent.
"We have taken a considered approach, consistent with international standards, so that maps are very clear about where network availability means your service will be usable and reliable, including in an emergency," Ms O'Loughlin said.
The maps must be updated at least every three months to reflect changes in network coverage. The three mobile network operators (Optus, Telstra and TPG) must also provide their partner companies (Mobile Virtual Network Operators) with maps for use by their customers.
Mobile providers that breach the rules may face significant enforcement action, including enforceable undertakings, remedial directions and financial penalties.
The ACMA developed the rules following a direction from the Minister for Communications to ensure coverage maps accurately reflect reasonable service levels and enable consumers to make meaningful comparisons of the coverage offered by different mobile providers.
Over time, the ACMA will look at whether the maps can be enhanced with alternative sources of data such as infield measurement and crowd-sourced information on coverage.
