As of September 2021, the country with the fastest fixed broadband internet speed was Singapore, with an average download speed of 247.54 Mbps and an average upload speed of 255.36 Mbps. This information was obtained from the Speedtest Global Index. The top five countries with the fastest mobile internet speeds were South Korea, the United Arab Emirates, Qatar, Norway, and Australia.

It’s important to note that internet speeds can vary significantly within a country, and the rankings mentioned are based on national averages. Furthermore, the introduction of new technologies and infrastructure can result in rapid changes to internet speeds.
Several countries and regions are investing heavily in new internet infrastructure and technologies that have the potential to offer even faster speeds in the future. For instance, in the United States, some cities are already offering gigabit internet speeds through fiber-optic networks. In Asia, Japan is investing heavily in 5G technology, which could provide much faster mobile internet speeds.
Several companies are also developing new technologies that could potentially revolutionize internet speeds. For example, SpaceX is planning to launch a network of satellites called Starlink that could offer high-speed internet to remote and underserved areas. Additionally, other companies are exploring new wireless technologies like Li-Fi, which uses light waves to transmit data and has the potential to offer much faster speeds than traditional Wi-Fi.
In summary, while Singapore and South Korea were the countries with the fastest fixed broadband and mobile internet speeds, respectively, as of September 2021, rapid advancements in technology and infrastructure may result in even faster internet speeds in the future.