Optus 4G service is part of the Optus Network and refers to 4G 1800Mhz coverage. You will require a 4G 1800MHz compatible device to access 4G coverage. A number of factors may affect coverage including location, demand on the network and use of external antenna. 2. Optus prepares coverage maps using the latest available data, tools and techniques to map Optus mobile coverage as accurately as possible. However as with any network based on radio technology, handset quality or local conditions may prevent or interfere with mobile reception within coverage areas, for example, inside concrete buildings, lift wells, basements, tunnels and road cuttings. High rise buildings may also suffer degradation of service. These maps are not an indication of in-building coverage. 3. Optus’ coverage maps may show planned rollout, which is indicated on the map. These predictions are based on rollout schedules available at the time of publication and may be subject to change without notice as circumstances require.

5G is the fifth generation of wireless network technology. The Optus 5G Network uses bands N78, and requires a 4G LTE connection. To use 5G, you’ll need a 5G-ready phone. 5G coverage and speed may vary depending on your device and location. Make sure your device is not locked to another network and is compatible with the Optus Network.