GSA has identified 110 operators in 66 countries or territories investing in all the three core LTE-Advanced features for Gigabit LTE (defined as Carrier Aggregation, 4×4 MIMO or higher, and 256QAM modulation in the downlink).
62 operators are known to have deployed all three of these technologies and / or launched commercial services based on them.
321 operators in 136 countries are investing in at least one of the key technologies.
Gigabit LTE does not always equal Gigabit speed. Some networks capable of delivering 1 Gbps downstream do so without using all three key LTE-Advanced features; some networks using all three features do not achieve 1 Gbps.
The fastest commercial LTE networks* in the GSA database are:
Megafon: 1.6 Gbps; KDDI, SK Telecom, Swisscom, Telus, Turkcell: 1.2 Gbps; KT: 1.167 Gbps (achieved using MPTCP to combine LTE with 3CA and WiFi); China Unicom: 1.156 Gbps; Bell Mobility: 1.15 Gbps; 3 Hong Kong, Singtel: 1.1 Gbps
* in terms of declared maximum peak theoretical DL throughput