Optus Network Coverage
Use the interactive coverage map to check the places where you’ll use your service, like your home and workplace.
Optus maps are prepared and published in accordance with the Telecommunications (Mobile Network Coverage Maps) Industry Standard 2026 (Cth) (Standard) and depict predicted outdoor ground level mobile coverage using predictive coverage modelling parameters prescribed by the Australian Communications and Media Authority (ACMA).
For the current network status including service interruptions in your area, also check Optus Network Status
Coverage Map FAQs
How do I use the coverage maps?
You can view the predicted outdoor ground level coverage available at a specific location by:
Finding a location
- Typing an address in the search bar located at the top of the map
- Click on the geolocation icon next the search bar
- Double clicking anywhere on the map to drop a pin
- Drag and drop the pin anywhere on the visible map
Moving around the map
- Use Ctrl + Scroll or the +/- to zoom in and out
- Left click and drag or use the arrow keys to pan around the map
Changing the map view
- Switch between Satellite and Road Map view by clicking on the button underneath the map next to Map Information
View coverage types
- Switch between 4G, Standard 5G and 5G+ predicted coverage layer by moving the mouse over the Coverage Layer menu inside the map and selecting the desired layer. When the indicative user experience is visible below the map, you can also move the mouse over those options to select.
Important: You’ll need a compatible device, plan, and SIM to access Standard 5G and 5G+.
Understanding the predicted coverage levels and indicative user experience
How do the coverage maps work?
The map shows predicted outdoor ground level coverage for 4G, Standard 5G and 5G+ (Standalone and Non-Standalone), including all coverage levels. You will need to enter an address or drop a pin on the map to see the predicted coverage level and indicative user experience at a specific location.
What do the coverage maps show?
After finding a location, the predicted outdoor ground level coverage and indicative user experience will be displayed for 4G by default. You can then switch between 4G, Standard 5G and 5G+ to show the different results for each technology.
Important: You’ll need a compatible device, plan, and SIM to access Standard 5G and 5G+.
Is the coverage map a guarantee of service?
The coverage map published by Optus is an indication of where coverage may be available, it is intended for general guidance only and not a guarantee.
What are the coverage levels and indicative user experience?
The coverage map represents predicted outdoor ground-level coverage based on four standardised coverage levels.
Good coverage
You can expect a high-quality user experience with seamless connectivity and performance.
- Voice: Very reliable connection with clear call quality.
- SMS: Messages send and arrive quickly with a high success rate.
- Data: Fast and stable data suitable for HD video, including streaming and video calls, and online games.
Note: Other factors can affect your ability to connect to the network.
Moderate coverage
You can expect a stable and consistent user experience with minimal disruption to connectivity and performance.
- Voice: Reliable connection with clear call quality.
- SMS: Messages generally send and receive reliably.
- Data: Suitable for everyday activities like browsing and email. Supports higher-bandwidth applications such as video streaming, video calls and online games.
Note: Other factors can affect your ability to connect to the network.
Basic coverage
You can expect an adequate user experience with occasional disruption to connectivity and performance.
- Voice: Generally reliable, but some calls may fail or drop.
- SMS: Messages generally send and receive, but delivery may occasionally be delayed.
- Data: Basic browsing and email usually work, but speeds may be slow. Higher-bandwidth applications such as video streaming, video calls and online games may not perform as well as at other coverage levels.
Note: Other factors can affect your ability to connect to the network.
No coverage
There is no, or only very limited, predicted coverage in these areas. You should not expect or rely on any service. Any connection you receive would be incidental, highly inconsistent and temporary, with very poor performance.
- Voice: Most call attempts are likely to fail.
- SMS: Messages are unlikely to be delivered.
- Data: Unreliable or unavailable.
Note: If you are near the edge of a basic coverage area, your device may still connect to a network. Such connections are incidental and not indicative of reliable mobile service.
Is there any important information that I should be aware of when using the map?
Assumptions and limitations: general mobile coverage map information
The mobile network coverage map shows where you are likely to be able to connect to a mobile network when outdoors and at ground level. It is based on technical modelling that predicts where coverage should be available, and where possible, how strong that coverage may be.
- General Guidance Only: It does not guarantee that you will always be able to connect or that you will experience the quality of connection shown.
- Indoors & Vehicles: The map does not apply if you are indoors or in a vehicle. Indoor coverage depends on building construction and where you are located inside the building. For example, you may have difficulty connecting, or experience poorer performance, if you are inside a building with thick walls, few windows, or if you are in a basement. See below for tips on how to improve your experience in these situations.
- Device Compatibility: The map does not apply to phones or devices that are not properly configured or that are incompatible with the mobile networks. Not all network features and data speeds are possible on all phones or devices, and access may vary depending on your plan. For example, you’ll need a compatible device, plan, and SIM to access Standard 5G and 5G+.
What can affect your mobile experience and how to improve it
While our maps give you a prediction of outdoor ground level coverage, other factors can affect the ability to connect to the network and the quality of the mobile experience. For example, your actual experience may differ because of:
Local conditions – Buildings, trees, hills and other nearby structures can weaken or block mobile signal. Even changes in your local area, like new building construction, can affect signal strength over time. If you’re near the outer edge of a predicted coverage area, these local conditions are more likely to affect your experience.
Network load – If many people are using the network in the same place at the same time, your mobile experience may be affected. This is more noticeable in small, crowded areas such as stadiums, transport hubs, events or busy business districts. You may notice slower data speeds, delayed loading or difficulty staying connected until demand on the network reduces.
Model/age of phone: Not all phones perform the same way on the mobile network. Some devices are better at receiving signal, and not all phones support the same network features (for example, you’ll need a compatible device to access Standard 5G or 5G+). Using a compatible, up-to-date device can help improve your mobile experience, especially if it supports the latest network technologies and settings. For more information on devices that are compatible with the Optus 4G and Standard 5G network go to optus.com.au/compatibility. For 5G+ compatibility go to Optus 5G+
Latest software/Firmware: Software and firmware updates can improve how your phone works with the mobile network. They may include important fixes for connectivity, calling features and overall device performance. Keeping your phone updated helps make sure you have the latest network settings and the best possible compatibility.
SIM card: An older SIM card may affect your connection, particularly if it doesn’t match the requirements of your device or network features, for example 5G+. If you’ve changed devices, have an older SIM, or think your SIM may be faulty, replacing it may help improve your connection.
Low power mode: Low Power Mode or battery-saving settings can reduce your phone’s performance and may switch off or limit some network-related features to save battery. Depending on your device, this may affect background activity, data performance or access to capabilities such as 5G. If you’re having trouble with your connection, try turning Low Power Mode off and checking your mobile settings again.
Mobile data/Network Mode selection: The best setting depends on your device, location and coverage.
- 4G/LTE can help if 5G is not available in your area or if you want a more consistent 4G connection.
- 5G Auto allows your device to switch between 4G and 5G depending on what is available and what your phone needs.
- 5G On/Preferred Prioritises 5G where available, but your experience will still depend on your location, device compatibility and network conditions.
If you’re having trouble, it can help to check that your phone is set to the most suitable mobile data option for your device.
Being indoors – When you’re indoors, mobile coverage can vary a lot because walls, windows, building materials and building layout can reduce or block signal. If you’re indoors and having trouble with calls, we recommend moving closer to a window or going outside may also improve your signal. Alternatively, Wi-Fi Calling can help you make and receive calls using your Wi-Fi connection when mobile signal inside the building is weak.