TRIPLE DATA
$39 for 75GB
SIM includes first $39 recharge. 75GB on first 3 recharges for new activations. 25GB from 4th recharge. Activate by 2 March 2026, remaining recharges by 4 May 2026. 28 day expiry. All for use in Aus. Incl. international calls.
150Mbps download speed cap will apply on 4G and 5G networks. Great for most customers’ regular usage including streaming, browsing and social media.
More on plan speeds
Free shipping anywhere in Australia.
On the Telstra Mobile Network.
SIM fits any device.
Full Product Details
75GB for $39
28 day expiry
All for use within Aus
75GB on first 3 recharges for new activations. 25GB from 4th recharge. Activate by 2 March 2026, remaining recharges by 4 May 2026. 28 day expiry. All for use in Aus. Incl. international calls. SIM includes first recharge.
150Mbps download speed cap will apply on 4G and 5G networks. Your speeds may vary based on conditions in your area. More on plan speeds
Data Rollover to use in next recharge if you recharge before expiry
Unlimited Calls & Text to standard national numbers
International Calls & Text Unlimited standard calls to 20 selected destinations + 300 mins standard calls to 30 selected destinations+ 300 standard text to any country.
View the Critical Information Summary.
To see what is included, search for the country you want to call / text.
See all the $39 SIM international inclusions
300 texts to standard numbers to any country in the world.
If the country you want to call is not included, you can always use your favourite messaging apps to keep in touch (e.g. WhatsApp, Facebook Messenger, Skype, WeChat
Check what’s included for the country you want to call or text.
What’s a prepaid phone plan?
A prepaid phone plan is a phone service that you pay for upfront. Boost Mobile prepaid phone plans include plenty of data, unlimited standard national calls/text, unlimited international calls.
What is the difference between a prepaid phone plan and a postpaid phone plan?
The difference between a prepaid phone plan and a postpaid phone plan is when you pay for the phone service. Prepaid phone plans require an upfront payment while a postpaid phone plan is paid at the end of the billing period.
Do Boost Mobile have a $39 plan?
Yes we do. Our $39 prepaid SIM includes plenty of data, unlimited standard national calls and texts, and data rollover.
How much is 75GB of data?
A 75GB mobile data plan offers a substantial amount of data for everyday use. With 50GB, you can enjoy approximately:
- 18,700 songs (approx. 4MB each)
- 900 hours of web browsing
- 75-150 hours of video streaming (depending on quality)
How long does 75GB of data last?
A 75GB prepaid SIM card is enough for a month of worry-free browsing and entertainment. For most users, 75GB is the perfect sweet spot - whether you’re catching up on Netflix, streaming your favourite playlist, or staying connected on social media. It gives you the flexibility to do what you love online without constantly checking your data balance.
Why Boost?
At Boost, we have a wide range of prepaid plans and recharge options to meet your needs.
We offer prepaid plans with a range of data inclusions, unlimited standard international calls/text and all with network coverage on the Full Telstra Prepaid Mobile Network. With Boost there are no lock- in contracts, simply activate your SIM and you're ready to go.
Discover more reasons to choose Boost:
- Data banking: Get data rollover on 28-day plans to use in next recharge if you recharge before expiry. For use in Australia.
- 5G on all plans: 250/150Mbps download speed cap will apply on 4G and 5G networks. Your download speeds may vary based on conditions in your area.
- Retailers nationwide: Find Boost in-store across Australia at major retailers including Coles, Woolworths, Officeworks and more.
All data offers are valid for new customers only who activate a value SIM (includes first recharge) or $2 SIM and recharge between 7 October 2025 - 4 May 2026.
- Online only offers, valid on SIM purchases and for new activations only. SIM includes first recharge; discount does not apply to subsequent recharges. Limited to one promotional item per customer.
- $26 eSIM & $300 SIM Sale: Offer valid from 12.01am 21st October 2025 and ends 11.59pm (AEDT) 3rd November 2025.
- $13-$365 Recharge/SIM: All offers valid for new activations only when you activate or first recharge by 2 March 2026. $13-$74 Offer: remaining two recharges by 4 May 2026.
- 250Mbps/150Mbps speed cap: Speed cap applies to 4G and 5G networks. Your capped download speed is the maximum potential download speed for data included in your recharge. Factors that affect typical speeds include location, distance from base station, local conditions, concurrent users, hardware and software configuration and download/upload destination.
- 5G is rolling out in selected areas and available with a compatible device. In non 5G coverage areas, you'll automatically switch to 4G.
- Rollover unused data to use within your next recharge when you recharge $26, $39, $49, $59 or $74.
- UNLTD® Calls and Texts includes national calls and text (SMS & MMS) to standard national numbers. Excludes calls and texts (inc. MMS) to international numbers, satellite and premium numbers (e.g. 19xx numbers), operator assisted calls (most 12xx numbers) and all use overseas.
- UNLTD International calls includes calls from Australia to standard numbers in the selected countries. 300/1200/3600 mins includes calls to standard international numbers from Australia. 300/1200/3600 texts include standard texts (SMS & MMS) to eligible countries. Both exclude premium services and video calls. For a complete list of included calls and destinations go to International Calls from Australia.
- Plan International inclusions:
- Boost Extras: An active recharge is required to use a $5 or $20 Data Pack. Service provided by Telstra Limited ABN 64 086 174 781. For personal use only. Telstra Fair Play Policy applies. For full consumer advice including Critical Information Summaries and Privacy Policy.
- Network coverage: Telstra has the largest and most reliable mobile network in Australia covering 99.7% of the Australian population in over 1,600 towns and communities, which is around 3 million square kilometres. Our mobile network is more than 1 million square kilometres greater than our nearest competitor. If you purchase a Boost SIM you must make sure your device is compatible with the Telstra network, including that it is able to make calls to emergency services. If your device is not compatible, it may be blocked and may not have access to voice or data services or be able to call emergency services (including triple zero). See our Volte page for more information on compatible devices.
- Roaming: Available in 42 countries. Your pack is active from the time of purchase and will expire at the same time on the last day. Call minutes include incoming & outgoing calls. Included calls and texts exclude premium, satellite and video calls and messages. Terms of use.
- Need help paying for your mobile service? Boost Mobile is brought to you working in partnership with Telstra. If you’re finding it difficult to pay for your mobile services, Telstra can help see you through difficult times. For more information see Telstra’s Payment Assistance Policy or using the Boost Mobile app, via the Payments tab.
