55%-60% of landline broadband users are in the “Global South,” about 500M. The South is 65%-70% if you include “wireless-only” many of which are 4G LTE at 10 megabits or more. (Chart below,)
The gap is widening rapidly and will increase by well over 70M in 2018. Six large developing countries grew at 5% or more in the last year, compared to only one in the developed world. China is adding ~30M more each year. Most developed countries are between 75% and 95% connected. That leaves little room for growth. (Below.) The strong majority are not native English speakers or European in ancestry.