GSA reports that "318 operators have commercially launched LTE networks and service in 111 countries .. Israel [by Orange Israel - see "LTE Services Enabled in Israel - See my Speedtest Results" - here], Madagascar and the Northern Mariana Islands are amongst the latest nations to access commercial LTE mobile broadband service for the first time. 51 LTE networks have launched so far in 2014. The total number of commercial LTE networks is expected to be more than 350 by the end of this year.
.. LTE networks capable of supporting 150 Mbps peak downlink (for Category 4 user devices) are commercially launched in at least 36 countries .. 69 operators, i.e. over 21%, are deploying LTE-Advanced technologies, 15 operators have launched carrier aggregation, including 4 operators whose networks support 300 Mbps Category 6 user devices
66 operators in 35 countries are investing in VoLTE studies, trials or deployments, including 10 operators in Hong Kong, Japan, Singapore, South Korea and the USA who have commercially launched HD voice service using VoLTE.
See "Over 50 LTE networks launched this year, total is 318 in 111 countries" - here.