Can I make international calls on long expiry mobile plans?

There are a handful of providers that offer either unlimited international minutes to selected countries or an allocation of how many minutes you can use on your plan to any country. Make sure to compare features between providers and their plans before signing up if this is an important feature to you.

Are 365-day prepaid plans the same as 12-month SIM only plans?

Yes, they're both the same. Some providers will refer to these as 12-month plans while others will call them 365-day prepaid plans. Keep in mind that some providers do offer 12-month contracted SIM only plans. These are different as you pay for your mobile bill monthly (rather than all upfront like a 365-day prepaid plan) and exit fees usually apply.

What happens if I don't use all my data up within 365 days?

Some providers do offer data banking as a feature on their 365-day plans. This can be unlimited or up to a certain limit. You'll just need to make sure to recharge your plan before it expires in order for the data to be rolled over. If your 365-day prepaid mobile plan doesn't come with any data banking feature, you'll lose your unused data at the end of the expiry period.

Can I get unlimited data on a 365-day prepaid mobile plan?

Unfortunately you can't on a 365-day prepaid plan. Unlimited data mobile plans are generally uncommon anyway and only felix offers a month-to-month truly unlimited data plan though the caveat is 40Mbps download speed caps throughout.

Is there a SIM card with data that doesn't expire?

No, there isn't. All SIM cards with data will eventually expire. The longest period to keep your plan running would be a 365-day prepaid mobile plan where you'll only need to recharge once a year.

Best 365-day prepaid mobile plans

Compare to find the best long expiry mobile plan

You'll find mobile plans with expiry periods between 90 and 365 days in the comparison table below.

10 of 46 results

Finder Score	Data allowance	Ongoing price	Special offer
9.5 amaysim 240GB Long Expiry Plan PrepaidNo lock-in contract SAVE $121 + BONUS DATA $320 $199 for first recharge 240GB 320GB for first recharge	9.5	Data Allowance 240GB Optus 4G/5G network	$320 per 365 day recharge per 365 day recharge Ongoing price $320 per 365 days expiry per 365 days expiry	SAVE $121 + BONUS DATA $320 $199 for first recharge 240GB 320GB for first recharge	320GB for $199 for first recharge, then 240GB for $320/recharge. Ends 15 May 2026. T&Cs apply.	$75 REWARD Go to site View details Compare product selectionCompare	loading
9.2 Boost $180 SIM PrepaidNo lock-in contract BONUS DATA 100GB 160GB for first recharge	9.2	Data Allowance 100GB Telstra 4G/5G network	$180 per 186 day recharge per 186 day recharge Ongoing price $180 per 186 days expiry per 186 days expiry	BONUS DATA 100GB 160GB for first recharge	160GB on activation, then 100GB/recharge. Activate by 10 Aug 2026. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
8.6 OnePass Mobile 365 Day Plan 200GB PrepaidNo lock-in contract SAVE $51 $200 $149 for first recharge	8.6	Data Allowance 200GB Optus 4G network	$200 per 365 day recharge per 365 day recharge Ongoing price $200 per 365 days expiry per 365 days expiry	SAVE $51 $200 $149 for first recharge	$149 for first recharge, then $200/recharge (ends 14 Jul 2026) + free OnePass membership on activation. Earn 5x Flybuys points for every $1 spent on recharge. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
9.5 Optus Flex Plus $180 186 days PrepaidNo lock-in contract SAVE $50 + BONUS DATA $180 $130 for first recharge 90GB 140GB for first 3 recharges	9.5	Data Allowance 90GB Optus 4G/5G network	$180 per 186 day recharge per 186 day recharge Ongoing price $180 per 186 days expiry per 186 days expiry	SAVE $50 + BONUS DATA $180 $130 for first recharge 90GB 140GB for first 3 recharges	$130 for first recharge, then $180, ends 26 May 2026. 140GB for first 3 recharges, then 90GB. New services only. T&Cs apply.	$75 REWARD Go to site View details Compare product selectionCompare	loading
9.1 Lyca Mobile Online Only Offer PrepaidNo lock-in contract SAVE $180 $360 $180 for first recharge	9.1	Data Allowance 600GB Vodafone 4G/5G network	$360 per 360 day recharge per 360 day recharge Ongoing price $360 per 360 days expiry per 360 days expiry	SAVE $180 $360 $180 for first recharge	$180 for first recharge, then $360/recharge. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
9.5 Lyca Mobile Medium Long Term PrepaidNo lock-in contract SAVE $90 $240 $150 for first recharge	9.5	Data Allowance 360GB Vodafone 4G/5G network	$240 per 360 day recharge per 360 day recharge Ongoing price $240 per 360 days expiry per 360 days expiry	SAVE $90 $240 $150 for first recharge	$150 on activation, then $240/recharge. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
8.9 Lyca Mobile Large Long Term PrepaidNo lock-in contract SAVE $260 $480 $220 for first recharge	8.9	Data Allowance 900GB Vodafone 4G/5G network	$480 per 360 day recharge per 360 day recharge Ongoing price $480 per 360 days expiry per 360 days expiry	SAVE $260 $480 $220 for first recharge	$220 on activation, then $480/recharge. T&Cs apply.	Go to site View details Compare product selectionCompare	loading
8.9 Optus Flex Plus $350 365 days PrepaidNo lock-in contract BONUS DATA 220GB 300GB for first 3 recharges	8.9	Data Allowance 220GB Optus 4G/5G network	$350 per 365 day recharge per 365 day recharge Ongoing price $350 per 365 days expiry per 365 days expiry	BONUS DATA 220GB 300GB for first 3 recharges	300GB for first 3 recharges, then 220GB/recharge. T&Cs apply.	$100 REWARD Go to site View details Compare product selectionCompare	loading
9.2 Kogan Extra Large 365 Days PrepaidNo lock-in contract No special offer	9.2	Data Allowance 500GB Vodafone 4G network	$300 per 365 day recharge per 365 day recharge Ongoing price $300 per 365 days expiry per 365 days expiry	No special offer	Go to site View details Compare product selectionCompare	loading
8 amaysim 150GB Long Expiry Plan PrepaidNo lock-in contract SAVE $41 $150 $109 for first recharge	8	Data Allowance 150GB Optus 4G/5G network	$150 per 184 day recharge per 184 day recharge Ongoing price $150 per 184 days expiry per 184 days expiry	SAVE $41 $150 $109 for first recharge	$109 for first recharge, then $150/recharge. Ends 1 Jun 2026. T&Cs apply.	Go to site View details Compare product selectionCompare	loading

Showing 10 of 19 results

Finder Score for mobile plans

We've scored over 290+ mobile plans on everything from cost to data allowance and important features.

Our experts give each plan a score out of 10 - totally fair, with no commercial strings attached.

Read the full methodology

Frequently asked questions

Yes, they're both the same. Some providers will refer to these as 12-month plans while others will call them 365-day prepaid plans.
Keep in mind that some providers do offer 12-month contracted SIM only plans. These are different as you pay for your mobile bill monthly (rather than all upfront like a 365-day prepaid plan) and exit fees usually apply.
Some providers do offer data banking as a feature on their 365-day plans. This can be unlimited or up to a certain limit. You'll just need to make sure to recharge your plan before it expires in order for the data to be rolled over.
If your 365-day prepaid mobile plan doesn't come with any data banking feature, you'll lose your unused data at the end of the expiry period.

Why compare mobile phone plans with Finder?

Genuine phone addicts. Unlimited scrolling and streaming, we got you. We track all offers daily so you can stay online all the time.

Cause we all hate caps. Our goal is to bring you all the good stuff, and surface any hidden fees. So you can get back to the fun stuff, like gaming.

Tried and tested. We give these plans a run for their money and listen to the feedback of the millions of Aussies who have used our plans comparison.

Thank you for your feedback!

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35 Responses

debApril 10, 2026

Can I use my mobile number I have now

Finder

SarahApril 13, 2026Finder

Hi Deb,

Yes, that’s absolutely fine, you can port your number between carriers quite easily. It usually takes a few hours. Hope this helps!

sateeshDecember 20, 2025

What are the strings attached to the Visa gift card by purchasing Optus 365 days prepaid mobile sim from Finder website?

Finder

AngusDecember 22, 2025Finder

You can use the Visa gift card anywhere Visa is accepted. To get the $150 card, you need to sign up for the 365 day plan and must not have been an active Optus customer in the last 30 days. The full terms and conditions are explained in more detail here.

johnNovember 17, 2025

how do you get a phone number with aldi 2$starter pack

Finder

MariamNovember 18, 2025Finder

Hi John, once you buy and activate the SIM, you’ll have the option to either port an existing number or sign up to a new number. Choose the latter. Hope this helps!

kevinNovember 7, 2025

Why is 12 month plan so dear

Finder

MariamNovember 10, 2025Finder

Hi Kevin, it is a slightly bigger chunk of your money upfront but they can work out cheaper than some month-to-month plans. If you prefer paying a smaller amount each month, you can compare monthly plans and filter out options based on your budget: https://www.finder.com.au/mobile-plans. Hope this helps!

MichelOctober 2, 2025

I am using only 65GB for 365 days! Which plan or company should I use?
I will prefer Telstra as the provider from the company chosen. Like Boost or Aldi.
Thank you

Finder

MariamOctober 3, 2025Finder

Hi Michel, unfortunately, you’ll be hard pressed to find a 365-day plan on the Telstra network for low data use. Your options include ALDI Mobile, Everyday Mobile and Boost Mobile. If you’re happy to expand to perhaps the Optus network, you can find some cheaper offers here: https://www.finder.com.au/mobile-plans/prepaid-plans/best-long-expiry-prepaid-plans. Hope this helps!

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Best 365-day prepaid mobile plans

Compare long expiry plans side by side to find the best one for you.