As the World slowly ventures into 5G era, I think this is a good time to trace the trail of wireless cellular technology adoption by countries over the years. Hence, this visualization charting the adoption of 3G,4G and 5G.

Few Notes:

• As some of my peers was misinterpreting the visualization due to exclusion of CDMA stream in 3G, I decided to re-do the visualization including CDMA stream.
• Bangladesh 4G adoption is shown as 2015 as Ollo claimed to launch LTE that year in some sites. But mass adoption occurred in 2018 February when Grameenphone, Robi Axiata and Banglalink launched LTE.
• Field trials or proof of concepts are excluded. Only commercial launch announcements (even with very minuscule coverage) is included