The Australian Rail Track Corporation (ARTC) and the Prague metro network are both boosting connectivity. Data Center Dynamics reported that Australia will upgrade technology on its National Train Communications System in 2024, with the Czech Republic already upgrading to 4G/5G connectivity. Australian mobile network operator Telstra will upgrade 3,000 communications units across the network with 4G, providing train-to-network control communications on the ARTC network nationally. In total, 81 locations benefit from the upgrade, some rural, including nine mobile tower sites and thirteen tunnels. According to ARTC, the upgrade will enable future upgrades, like 5G. "The Telstra 4G coverage update will primarily support train to train control communications, network maintenance staff, and network control on both freight and passenger services across the ARTC network," said Brad Moorhouse, ARTC Group executive engineering and systems.