ookla 5g map 230Mike Apgar built one of the first Internet cafes in 1996. He went on to build Ookla and speedtest.net, with a pioneering spirit. It's now part of Ziff, but continuing to provide good information. They posted this map before I built mine and did a good job. (Make sure only "commercial availability" is checked.) I had missed that Etisalat in the UAE had gone live. 

Here's my latest tally. 

Country Company
Korea Korea Telecom
Korea SK
Korea LG+
U.S. Verizon
U.S. Sprint
UK Vodafone
China China Mobile
China China Telecom
China China Unicom
China China Broadcast
UAE Etisalat
Spain Vodafone
Italy Vodafone
Australia Telstra
Switzerland Swisscom
Switzerland Sunrise
Soon come  
U.S. T-Mobile
Australia Optus
UK Three
Finland Elisa