The internet speed record has been tainted by Japanese engineers after they demonstrated 319 Terabits per second through optical fibers. The fiber was used for approximately 3,000 km (1,864 miles), with the system apparently compatible with existing cable infrastructure. Moreover, that is almost double the previous record set less than a year earlier of 178 Tb/s.
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In addition, it is seven times faster than the previous record – 44.2 Tb/s from an experimental photonic chip. The US Space Agency is able to achieve 400 gigabits per second, and that is way above what users are experiencing today. Japan, New Zealand, and the US have some of the fastest home internet connections, topping out at 10 Gbps.
Source: Tweak Town