Aussie Broadband
20GB
20GBa month, ongoing
$360first year
$30 a month
Same price in year two
These prices were checked on 15 October 2026, more than 30 days ago. Check the provider's page before you buy.
Optus networkUses the Optus network
Aussie Broadband plans, added up
Aussie Broadband sells month-to-month SIM-only plans on the Optus network, which its Critical Information Summary names.
4 plans, from $360 for the first year (20GB) up to 180GB a month (180GB).
Aussie Broadband against its network
- Cheapest way in: Aussie Broadband 20GB at $360 for the first year. That ranks 5 of 6 providers on the Optus network, where OnePass starts at $149.
- Not the cheapest on the Optus network at any of the 5 data levels we compare (10GB, 30GB, 60GB, 100GB, 200GB).
- Best value per GB: Aussie Broadband 180GB, about $0.33 a GB over the first year.
- 4 plans: postpaid, billed monthly.
Every Aussie Broadband plan
Switching to Aussie Broadband
- Check your phone is unlocked and works on the Optus network, because Aussie Broadband uses it. Look at the coverage map for the places you live and work.
- Keep your number: ask Aussie Broadband to move it when you sign up, and don't cancel your old plan first. Your old provider texts a code to confirm, and the move is usually done the same day.
- Expect a bill, not a recharge: it's postpaid. The smallest first bill is $30 (Aussie Broadband 20GB).
- None of the 4 Aussie Broadband plans we track has a lock-in contract, so you can leave without a fee.
- eSIM (no plastic SIM) is listed on 4 of 4 plans, so you can switch on the spot with a compatible phone.
- If your data runs out, your speed drops instead of stopping.
How the prices line up
Aussie Broadband at a glance
- Network
- Uses the Optus network
- Type
- Postpaid SIM-only
- Cheapest first year
- 20GB, $360
- Best per GB
- 180GB, $0.33 a GB in year one
- Deals right now
- None
- Contracts
- No lock-in on any plan we track
Download speeds are capped at 150Mbps.
When the monthly data is used up, speeds slow to 1.5Mbps; there are no excess usage charges (Critical Information Summary).
$5 a month off when bundled with an Aussie Broadband internet plan; we don't count that.
Download speeds are capped at 250Mbps.
Questions people ask
Which network does Aussie Broadband use?
Uses the Optus network. Coverage is the same as Optus's because it rents the same towers. Check the coverage map.
Is Aussie Broadband cheaper than Optus?
It depends on how much data you use. Aussie Broadband vs Optus shows the cheapest plan on each at several data levels.
How was this checked?
From Aussie Broadband's own plans page and Critical Information Summaries. Each plan page shows the date. We are not paid by providers to rank them.