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 51 results

Finder Score	Data allowance	Ongoing price	Special offer	Description	Rewards
9.9 OnePass Mobile 365 Day Plan 200GB PrepaidNo lock-in contract SAVE $51 + BONUS DATA $200 $149 for first recharge 200GB 250GB for first recharge	9.9	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 + BONUS DATA $200 $149 for first recharge 200GB 250GB for first recharge	250GB for $149 for first recharge, then 200GB for $200/recharge (ends 9 Dec 2025) + 12 months of free OnePass membership. Ends 27 Jan 2026. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.5 Optus Flex Plus $350 365 days PrepaidNo lock-in contract $275 for first recharge 300GB for first 3 recharges	9.5	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	$275 for first recharge 300GB for first 3 recharges	$275 for first 365 days, ends 13 Jan 2026. 300GB for first 3 recharges, then 220GB. New services only. T&Cs apply	ENDS SOON! $100 VISA CARD REWARD 1 Click here 2 Buy an Optus Prepaid long expiry plan 3 Get card from Finder Ends by. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.9 Boost $300 SIM PrepaidNo lock-in contract SAVE $50 + BONUS DATA $300 $250 for first recharge 240GB 290GB for first recharge	9.9	Data Allowance 240GB Telstra 4G/5G network	$300 per 12 months per 12 months Ongoing price $300 per 12 months per 12 months	SAVE $50 + BONUS DATA $300 $250 for first recharge 240GB 290GB for first recharge	290GB for $250 on activation, then 240GB for $300/recharge. Ends 22 Dec 2025. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.1 Boost $365 SIM PrepaidNo lock-in contract No special offer	9.1	Data Allowance 365GB Telstra 4G/5G network	$365 per 12 months per 12 months Ongoing price $365 per 12 months per 12 months	No special offer	Go to site More info Compare product selectionCompare	loading
7.8 Vodafone $250 Prepaid Plus Starter Pack PrepaidNo lock-in contract BONUS DATA 150GB 200GB for first recharge	7.8	Data Allowance 150GB Vodafone 4G/5G network	$250 per 365 day recharge per 365 day recharge Ongoing price $250 per 365 days expiry per 365 days expiry	BONUS DATA 150GB 200GB for first recharge	200GB on activation, then 150GB/recharge. Ends 16 Mar 2026. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.9 amaysim 150GB Long Expiry Plan PrepaidNo lock-in contract SAVE $41 $150 $109 for first recharge	9.9	Data Allowance 150GB Optus 4G/5G network	$150 per 182 day recharge per 182 day recharge Ongoing price $150 per 182 days expiry per 182 days expiry	SAVE $41 $150 $109 for first recharge	$109 for first recharge, then $150/recharge. Ends 17 Dec 2025. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.8 Kogan Extra Large 365 Days Finder AwardPrepaidNo lock-in contract SAVE $111 + BONUS DATA $300 $189 for first recharge 500GB 650GB for first recharge	9.8	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	SAVE $111 + BONUS DATA $300 $189 for first recharge 500GB 650GB for first recharge	Black Friday offer: 650GB for $189 for first recharge, then 500GB for $300/recharge. Ends 7 Dec 2025. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.7 Kogan Small 365 Days Flex PrepaidNo lock-in contract SAVE $30.90 + BONUS DATA $179.90 $149 for first recharge 140GB 250GB for first recharge	9.7	Data Allowance 140GB Vodafone 4G network	$179.90 per 365 day recharge per 365 day recharge Ongoing price $179.90 per 365 days expiry per 365 days expiry	SAVE $30.90 + BONUS DATA $179.90 $149 for first recharge 140GB 250GB for first recharge	Black Friday offer: 250GB for $149 for first recharge, then 140GB for $179.90/recharge. Ends 7 Dec 2025. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
9.1 Vodafone $160 Prepaid Plus Starter Pack PrepaidNo lock-in contract BONUS DATA 90GB 140GB for first recharge	9.1	Data Allowance 90GB Vodafone 4G/5G network	$160 per 185 day recharge per 185 day recharge Ongoing price $160 per 185 days expiry per 185 days expiry	BONUS DATA 90GB 140GB for first recharge	140GB on activation, then 90GB/recharge. Ends 16 Mar 2026. T&Cs apply.	Go to site More info Compare product selectionCompare	loading
7.5 amaysim 200GB Long Expiry Plan PrepaidNo lock-in contract No special offer	7.5	Data Allowance 200GB Optus 4G network	$270 per 365 day recharge per 365 day recharge Ongoing price $270 per 365 days expiry per 365 days expiry	No special offer	Go to site More info Compare product selectionCompare	loading

Showing 10 of 20 results

Finder Score for mobile plans

We've scored over 300 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.

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31 Responses

JohnMay 8, 2025

Can I keep my mobil number

Finder

MariamMay 9, 2025Finder

Hi John, yes, you can keep your mobile number if it’s under your name. If it’s not, you’ll need to transfer the ownership to your name first. When you sign up, they’ll ask if you want to keep your existing number – just select ‘yes’ when prompted. Hope this helps!

peterApril 21, 2025

which company offers the cheapest 365-day prepaid plan in australia

Finder

MariamApril 22, 2025Finder

Hi Peter, Kogan (Vodafone network) and Catch (Optus network) have some really good long-expiry plans that tend to be the cheapest when there’s an offer running (which there is right now). Have a look at our top picks https://www.finder.com.au/mobile-plans/prepaid-plans/best-long-expiry-prepaid-plans. Hope this helps!

GrahameApril 16, 2025

what is the difference between telstra normal and wholesale networks

Finder

MariamApril 22, 2025Finder

Hi Grahame, Telstra’s main (retail) network covers around 99.5% of the population, including more remote areas. The wholesale network covers about 98.8%, so the difference is small but can matter if you’re in a more remote location. Hope this helps!

Finder

AngusDecember 2, 2024Finder

Hi Aboud, You’re in the good place to start – if you’re after low-fuss text and talk, a 365-day plan is a good option. But if you’d prefer monthly payments, check out our guide to cheap mobile plans.

FionaOctober 21, 2024

I want a prepaid sim card (normal size) for the elevator phone, without an expiry date. Is this possible?

Finder

AngusOctober 22, 2024Finder

Hi Fiona, Alas, I’m not aware of any SIM card that has no expiry – it’s always going to need a plan attached to it to be active, and 365 days is the longest you can get in Australia.

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Best 365-day prepaid mobile plans

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