nbn® speed upgrade | September 2025

You may have been contacted about an upcoming speed upgrade that NBN Co is making to your nbn Internet plan.  In this article, we'll explain what is changing and when, and how you make sure you are prepared when speed changes take effect.

What’s changing?

Recently, NBN Co announced they’ll be increasing the broadband speeds on three of their fastest speed tiers – at no extra cost. Eligible services will automatically benefit from this upgrade.

Starting from mid- September 2025, we will begin upgrading eligible Optus nbn plans or speed packs with Fibre To The Premises (FTTP) or Hybrid Fibre Coaxial (HFC) connections to faster speeds.  

• Optus Home Fast Typical Busy Period speeds will increase from 100/18Mbps to 500/43Mbps*.
• Optus Home Superfast Typical Busy Period speeds will increase from 250/22Mbps to 680/43Mbps*.
• Optus Home Ultrafast Typical Busy Period upload speed will increase from 800/40Mbps to 800/80Mbps*.

Additionally, Optus will upgrade FTTP and HFC customers who currently have an 100/36 Mbps speed service:

• Eligible customers who have an Optus Home Fast speed plan with a 100/36 Mbps (Speed Pack 4) speed pack will have the speed pack removed and upgraded to our new Optus Fast nbn plan (500/43Mbps* Typical Busy Period Speed).
• Customers on an Optus Standard Plus (100/36 Mbps) speed plan (or on a 50/18Mbps speed plan with a 100/36Mbps (Speed Pack 4) will be upgraded to our Optus Business nbn Pro speed pack (250/80Mbps* Typical Busy Period Speed) at no extra cost.

^{*Typical Busy Period Speeds: 7am-11pm for consumer customers, 9am – 5pm for business customers. HFC and FTTP only.}

^{The Typical Busy Period Speeds advertised for the new nbn speed tiers are our best estimate, based on the available speed data. This is not based on the speeds observed for a representative sample (with the exception of the Ultrafast download speed which is not changing). Once more data is available, the Typical Busy Period Speeds for the new nbn speed tiers will be updated accordingly.}

Why is the nbn® speed upgrade happening? 

The nbn speed upgrade aims to give more households and businesses (on the eligible plans) access to higher-speed plans, and ensure the network is prepared to meet future broadband needs of Australia. 

What do I need to do next? 

The speed upgrades will be rolled out over a few weeks from 15 September 2025, and you’ll receive a notification once completed. Please note, in some situations, it may take longer to upgrade your plan or speed pack.

Everything else in your nbn plan remains the same - the speed upgrade will not impact your plan price, any inclusions, add-ons, special discounts, or other promotions you may already have. And your billing cycle will remain the same. 

If you're happy with your current online experience, you won’t need to make any changes to your home setup. However, to get the most out of the increased speeds you may want to consider optimising your Wi Fi set up using our handy tips below.

For some customers with the 100/36Mbps (Speed Pack 4) speed pack, while your speed will be upgraded, your bill/invoice may still show your current ‘Speed Pack 4’ or ‘100/40’ add-on until we update our systems in January 2026. 

Handy tips to get the most out of the speed upgrade

To get the most out your new faster broadband speeds, you may want to optimise home network set up.  This would help getting faster speeds in more areas of your home. Don’t forget Wi-Fi signals weaken with distance or if the signal has to travel through solid objects. This will impact the speed of the connection. 

1. Improve your Wi-Fi experience by positioning your modem in a central part of the home
2. Connect to your Wi-Fi using the 5Ghz network.
3. For device devices that stream or download a lot (like gaming consoles or smart TVs), we recommend connecting them with an ethernet cable.
4. Make sure your connected devices are capable of supporting the higher speeds.

Modem compatibility

Your modem/router, and how it is set up within your premises, could limit you from utilising your maximum speed of your internet plan.

We want to make sure that you’re set up to get the maximum speed available. If you’re using an Optus supplied modem, please refer to the below table for advice on compatibility with the nbn speed changes.

If you’re using your own modem at your premises, we recommend you use one that has a ‘Wi-Fi 5’ specification or higher for the Fast speed plan and at least ‘Wi-Fi 6’ for our SuperFast and UltraFast speed plans. These modems are designed to support the new, faster speeds.   

Check out a comparison of Optus-supplied modems below.

Not sure if your modem is compatible, or need help with your modem, please contact us via My Optus app or call 133 937. 

Further help

Optus modem compatibility

FAQs