Figure 4 shows the number of subscribers globally, by generation of mobile technology. In Singapore, the operators Singtel and StarHub have boosted mobile services to lGbps, following successful trials in 2017. Ooredoo Oman had covered 90% of the population with LTE network by mid-201817. Several MENA operators have commenced trials of 5G and are beginning to map out spectrum strategies in conjunction with national regulatory authorities-for example, Zain and Etisalat have conducted 5G trials in Saudi Arabia, Kuwait and UAE.