25TH BDAY BONUS
12 MONTH
SIMS
300GB
FOR $300
HAPPY 25TH TO US
WANNA
SLICE
Get a slice of our
Birthday Deals
25GB bonus included with our 28
day plans. Plus more.. Activate by
6 October. All for use in Aus.
SHOP NOW
REFURB SHOP
FREE SIM
WITH ALL
REFURBS
Thats right all refurbs include a FREE
$39 SIM and express delivery.
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VOTED AUSTRALIA'S BEST QUALITY
& VALUE PREPAID PLANS
We’re proud to be recognised for what matters. Unbeatable value, razor-sharp reliability and always putting you first. That's why we've won the 2025 WeMoney Telco Awards for Best Quality and Best Annual Prepaid Plan. Find out more.
Network Reliability
MOZO AWARD WINNER 2025
WINNER NETWORK RELIABILITY
Best for Quality
WEMONEY AWARD WINNER 2025
BEST FOR QUALITY PREPAID MOBILE
Best Annual Prepaid Plan
WEMONEY AWARD WINNER 2025
Full Telstra Prepaid Mobile Network Coverage
Covers around 1 million km² more than any other mobile network.
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No lock-in
contracts
Enjoy the freedom of prepaid. Know what you get and when you get it with no additional costs.
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Bring your
own number
Bring to Boost Mobile your exsiting number in just a few easy steps. or you can grab one of ours. It's up to you.
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Connect Faster with eSIM
Get connected faster in just a few taps without waiting for a physical SIM to arrive post.
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FREQUENTLY ASKED QUESTIONS
Prepaid SIM Card FAQs
How long will the current deals last?
They are usually limited time only deals and can last as little as 48hrs to 2 weeks at a time?
When does Boost release new deals?
There is no fixed release dates for our deals so to stay on top of the latest offers, it’s best to check our website regularly, follow our social media channels.
What are prepaid SIMs?
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.
Can I buy a SIM card and keep my number?
Yes, you can buy a new SIM and keep your number. Simply head to activate and click ‘keep existing number.’
How long does prepaid credit last?
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
What is the best prepaid SIM card in Australia?
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, which is around 3 million square kilometres when using an external antenna. Our mobile network 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.