The report linked below was recently published by OpenSignal.
From an Open Signal Blog Post:
OpenSignal [has] released its new Global State of Mobile Networks report, our first worldwide report that looks beyond 4G technology to examine the overall mobile data prowess of nearly 100 different countries.
From the Report
LTE may be the technology du jour, but 4G can only tell us so much about a country’s overall mobile networking progress. In our first Global State of Networks report, OpenSignal has examined the overall mobile data performance of the 95 different countries to see how they stack up. While 4G is a big factor especially in the most developed nations, 3G is still an important component of most countries’ mobile data infrastructure and Wifi has a major influence on the way the majority of the world uses smartphones.
Direct to Full Text Report: Global State of Mobile Networks (August 2016)
See Also: More OpenSignal Reports