AT&T Mobility (NYSE:T) provided reporters a glimpse into its forthcoming LTE network at its Foundry lab and innovation center in Plano, Texas. According to GigaOM, the carrier's tests showed downlink speeds of 28.87 Mbps and uplink speeds of 10.4 Mbps. The demo did not use carrier aggregation technology. While blazingly fast, the speeds likely will be much slower on a commercial, fully-loaded LTE network. Verizon Wireless (NYSE:VZ) has said its LTE network can deliver average downlink speeds of 5-12 Mbps and average uplink speeds of 2-5 Mbps on a fully-loaded network. AT&T has promised to launch commercial LTE service using its 700 MHz and AWS spectrum sometime this year, and expects to cover up to 75 million people with LTE by the end of this year. Article