Network Reliability
Mozo Award Winner 2025
Winner Network Reliability
BACK TO SCHOOL SALE
$39 SIM FOR $13
28 Day Expiry
Ongoing recharges $39.
Sale ends 2 February.
On new activations.
All for use in Aus.
Online only.
HARD-WORKING DEAL
$300 SIM FOR $250
12 Month Expiry
Ongoing recharges $300.
Sale ends 9 February.
On new activations.
All for use in Aus.
Online only.
Best for Quality
WeMoney Award Winner 2025
Best for Quality Prepaid
Best Annual Prepaid Plan
WeMoney Award Winner 2025
Best Annual Prepaid Plan
Travelling overseas
Roam for less than $3 a day!
With Boost Int. Roaming
Roam to 42 countries on
our $40 roaming pack with
14 day expiry. Terms Apply.
Keep your number
Connect faster with eSIM
Easier, Smarter Connectivity
No more waiting.
Get connected using
the My Boost Mobile app.
Prepaid SIM Card FAQs
With prepaid mobile phone plans, you pay for your services upfront, so you know exactly what you're spending - meaning no more nasty surprises at the end of the billing period!
Boost Mobile SIM only plans offer a wide range of affordable prepaid mobile SIM plans featuring services such as unlimited calls and texts, unlimited standard international calls, as well as substantial monthly data allowance.
Yes, you can buy a new SIM and keep your number. Simply head to activate and click ‘keep existing number.’
Boost Mobile offers a selection of SIMs, catering to everyone’s needs. Here are some tips to help you choose the best SIM for you:
- Data: Think about your data needs. If you’re a Netflix junkie, go for a plan with plenty of gigs. If you're more of a casual user, a smaller plan might be just right.
- Data rollover: Some of our plans let you rollover unused data to the next recharge.
- Unlimited talk & text: All of our 28 day and long expiry plans include unlimited talk and text.
- Network coverage: All of our plans are on the full Telstra prepaid Mobile Network, covering 99.7% of the Australian population in over 1,600 towns and communities. Our mobile network is more than 1 million square kilometres greater than our nearest competitor.
- Expiry: We have two great options to suit every type of user. Our 28-day prepaid mobile plans provide monthly flexibility without the pressure of a lock-in contract.
Our 365-day plans are perfect for those who want to set and forget.
The duration of prepaid credit depends on your chosen plan. Check out our selection of plans with varying expiry options:
Local plans:
- 28-day expiry
- 12-month expiry
International roaming plans:
- 3-day expiry
- 7-day expiry
- 14-day expiry
Whether you’re after a flexible 28-day SIM or a long-expiry 12-month SIM, Boost Mobile has the prepaid plan for you. 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. Our mobile network now spanning 3 million square kilometres, which is more than 1 million square kilometres greater than our nearest competitor.
You can also bring your own number or grab one of ours. Enjoy the freedom of prepaid - know what you get and when, with no additional costs – we’ll also deliver your SIM for free, no matter where you live in Australia. Browse our selection of prepaid mobile plans and find the right one for your needs.
We are here to help
Assistance in paying your service
There are ways Boost can help
To learn more about Telstra Payment Assistance Policy below or if you prefer, use the Boost Mobile app, via the Payments tab.
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.
- $39 SIM Sale: Offer valid from 12.01am 13th January 2026 and ends 11.59pm (AEDT) 2nd February 2026.
- $300 SIM Sale: Offer valid from 12.01am 20th January 2026 and ends 11.59pm (AEDT) 9th February 2026.
- $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:
