at 850 MHz. A dual mode (LTE/HSPA+) mobile broadband device has been developed for the network. January 2012: Initial major LTE rollout complete. Incremental rollout continues, widening the coverage in capital cities and introducing new LTE coverage to regional centres. July 2012: Telstra commences retailing a pocket-sized battery powered 4G WiFi router (ZTE MF91) for prepaid data customers, locked to Telstra, complementing its range of 4G-capable devices. Apart from the ZTE MF91, the Telstra 4G hardware range now comprises two dual mode (4G/3G) voice-capable handsets by HTC and ZTE (available for purchase outright or on a post-paid plan), a Sierra USB wireless modem (outright or post-paid plan), a ZTE USB wireless modem (prepaid, locked to Telstra) and a Sierra 4G Wifi battery powered pocket-sized router (outright or post-paid plan). Telstra is reported to now be operating LTE facilities from more than 3,500 transmission sites. August 2013: Telstra demonstrates the world's first ever LTE- Advanced Carrier Aggregation network using the 900 MHz and 1800 MHz spectrum bands in the Sunshine Coast. April 2014: Telstra introduced a mobile broadband device from Huawei (E5786) with LTE Advanced capability. May 2014: Telstra and Ericsson demonstrate world first 450 Mbit/s LTE-A downlink speeds in a commercial network with a Category 9 device. September 2015: Telstra, in collaboration with NETGEAR, Ericsson and Qualcomm Technologies announce that it is bringing the world's first 4G LTE Advanced 600 Mbit/s Category 11 device to customers. September 2016: Telstra conducts the first live 5G trial in Australia with Ericsson, demonstrating 5G capabilities in a real world environment, including speed and beam steering tests. December 2016: Telstra shuts down the 900 MHz GSM/EDGE network on 1 December. Prior to this, EDGE data capabilities were available on 100% of the GSM networks used. January 2017: Telstra launches world's first Gigabit LTE-Advanced mobile network. March 2019: Telstra closed the 2100 MHz (Band 1) section of its 3G network on 25 March. May 2020: Telstra made available Australia's first 5G network using 3500 MHz spectrum. April 2021: Telstra purchased via Auction 800 MHz of 26 GHz (26,000 MHz) Spectrum nationally for 5G mmWave technology. Next G Network In 2005, Telstra announced a plan to upgrade its ageing networks and systems; which includes a new 3G network to replace the then current CDMA mobile network. The network was built between November 2005 and September 2006, and launched in October 2006. , Next G was the