Mobile networks operate on specific frequencies called "bands". Each tower broadcasts signals on various bands, and your device must support at least one to connect. Different bands have unique characteristics affecting coverage, building penetration, and data capacity. 

Significance of Band 28

Band 28 (700 MHz) is crucial on the Telstra Wholesale network that ALDImobile uses because it has:

• Extended coverage: Provides better coverage in rural and remote areas.
• Building penetration: Improved indoor reception.
• Network efficiency: Key for balancing network load and performance.

Implications of limited 4G band support

1. Coverage issues:

   • Potential signal loss in areas where only unsupported bands are available.
   • Compromised indoor reception, especially in buildings with thick walls.

2. Reduced network performance:

   • Possible slower data speeds or less reliable connections.

3. Future-proofing concerns:

   • Critical as 3G networks were shut down from 28 October 2024).

Recommended actions

1. Check your device specifications:

   • Review your device's supported 4G bands in its manual or online specifications.

2. Use our coverage checker:

   • Review the coverage map on our website.

3. Consider an upgrade:

   • If experiencing consistent coverage issues, consider a device with wider 4G band support.

Network details

To fully leverage the Telstra Wholesale network capabilities, ensure your device supports the bands used in your area:

Required primary bands:

• 4G: 700MHz (Band 28) - Main coverage band
• 5G: 3.6GHz (Band n78) - Main 5G band

Additional capacity bands (availability varies by location):

• 4G: 1800MHz (Band 3), 2100MHz (Band 1), 2600MHz (Band 7)
• 5G: 850MHz (Band n5), 2.6GHz (Band n7), 26GHz (Band n258)

Note: Not all frequencies and bands are active in every location. For specific area information, consult the Radio Frequency National Site Archive (RFNSA).

For further details about our network coverage, please refer to our coverage map.