Buying a plan from a local carrier
Telstra sells prepaid plans for overseas visitors online, in the app and in stores. Most plans allow a physical SIM or an eSIM activated through My Telstra. At the time of checking, its seven-day $15 plan displayed 5 GB, including a 1 GB activation bonus, and its twenty-eight-day $44 plan displayed 50 GB, including a 30 GB activation bonus. The underlying allowances are 4 GB and 20 GB. The larger introductory totals require activation by the listed deadline and apply to the first three recharges. Telstra says its $15 plan excludes international calls, although standard Australian calls and texts are included.
Optus directs prepaid eSIM buyers from its website into the My Optus app for purchase and installation. Its displayed short and longer plans have changing introductory allowances and price notices, so compare the standard recharge with the sale tile. Vodafone publishes an eSIM activation guide that uses a QR code and an activation code; confirm its current prepaid terms with Vodafone. These are separate purchase routes, not evidence that each network is equally strong at the destination. Decide whether voice and international calling are needed before buying data, and keep the activation email until the line works.
The identity check
The Australian Communications and Media Authority, ACMA, says a prepaid customer must supply a name, date of birth and home address and have identity checked. A carrier may inspect a document or use a government verification service; a number transfer can involve extra checks. The requirement applies to an eSIM as well as a plastic card. Telstra's visitor checkout lists an international passport or Immicard as identification, which helps travellers without Australian identity papers. Check the current flow before purchasing.
Vodafone's eSIM guide describes installing a profile with a QR code and activation code; ACMA's prepaid ID rule still applies when that route is used for prepaid service. Optus describes app download but its marketing page does not give a full foreign-document list. A visitor should confirm the document accepted by the selected provider, especially if buying before arrival. Keep the name and details consistent across purchase and activation. An older proposal about alternative digital identity methods should not be treated as a visitor option unless the provider actually presents it.
Coverage you can expect
Telstra says its 5G network reaches 85 per cent of Australians and its 4GX serves major and regional cities plus more than 1,600 towns and communities. Those are the carrier's own figures about people and places, not percentages of land area. A route through the Nullarbor, inland Queensland or the Kimberley needs more precise checking than a capital-city postcode. Even mapped outdoor coverage cannot guarantee reception inside a building or every kilometre between towns. Save accommodation contacts and route maps before leaving an area with known reception.
ACMA says rules in force from June 2026 require operators to publish 4G and 5G maps using the same categories: good, moderate, basic or no coverage. The maps must explain those labels and be updated at least every three months. Compare Telstra, Optus and Vodafone at the actual overnight stops and along a road or rail corridor. Standard labels make comparison easier, but remain planning information rather than a real-time guarantee. If the journey leaves a mapped service area, arrange communication suitable for that route rather than assuming an eSIM can create a signal.
Check your phone first
Telstra warns that phones bought overseas may not support eSIM. Its guidance suggests dialling *#06# and checking for an EID; Apple separately explains how to check carrier lock on an iPhone. An EID establishes embedded-SIM hardware; it does not confirm compatibility with every Australian network, voice calling or the chosen carrier's activation process. Check the model with the operator and save profile instructions while a reliable connection is available. A dual-SIM handset may keep the home number active for account texts while a local line carries data, subject to its settings and home roaming rates.
The 3G shutdown adds a separate issue for older or imported handsets. ACMA says some 4G phones relied on 3G for voice or Triple Zero calls and may be unable to call 000; providers must not supply service to models that cannot access emergency calling. Ask the intended Australian operator to check the exact model. Do not test it by calling 000, which ACMA explicitly discourages. A data-only eSIM also cannot be assumed to provide conventional voice service. Our Australia plan page is another place to compare connection options before flying.
Use the actual arrival terminal's Wi-Fi
Sydney Airport says free Wi-Fi is available throughout T1 International through its named network and an on-screen terms step. Melbourne Airport lists complimentary Wi-Fi in T2, T3 and T4 public areas but says it is currently unavailable in T1. These differences matter when an eSIM is to be downloaded after landing. Save the QR code, activation email, first accommodation address and onward ticket before flying, then follow the terminal's connection instructions if another download is needed. Airport Wi-Fi is a temporary bridge while a prepaid line is activated, not a promise of service on the onward train or motorway.
If activation fails at the airport, check whether the ID step was completed rather than repeatedly deleting the profile. Telstra says My Telstra can manage recharges, while Optus uses My Optus for its prepaid eSIM. Installing the relevant app early can help, but registration must still succeed. Keep a payment method and the provider's support route available if the first package expires during travel. The Melbourne airport page also warns that its free Wi-Fi is unencrypted, so use the ordinary security protections of the services being accessed.
Keep Triple Zero and onward roaming separate from data
Triple Zero, written 000, is Australia's emergency call service. ACMA's rules after 3G closure focus on whether a handset can actually reach it, including when the customer's own network is unavailable. A data allowance, 5G icon or installed eSIM does not prove emergency voice access. Keep a voice-capable phone available and check an imported handset with the intended provider. For a long drive, share the route and planned stops before entering a mapped gap, since the regulator's coverage categories include no service. A mobile connection cannot be relied on where no network is available.
Telstra says its visitor prepaid inclusions are for use in Australia. A twenty-eight-day plan describes time within the country; it does not promise service in New Zealand, Indonesia or another onward destination. Ask the Australian operator about a separate international roaming product and ask the home operator what it will charge while the home number remains active. Before leaving, check whether automatic recharge is enabled: Telstra says it must be cancelled in My Telstra if no further recharge is wanted. Keep the number long enough for final airline or accommodation messages, then manage the digital profile according to the provider's instructions.
Networks our Australia plans use
These are the operators named on our plans for Australia, taken from the plan data, so the list follows the catalogue.
- Optus5G
- Singtel Optus Ltd5G
- TelstraLTE
- Vodafone5G