The infographic below tells you all you need to know about the 55 countries that did not support the ITU’s attempt to take over the Internet, and the many more countries which did. Constitutional democracies prevail in those who did not support the ITU’s takeover attempts.
It is reasonable to conclude that the ITU has been shattered in the attempt. Time will tell. Those countries which did not sign the treaty modifications (called International Telecommunications Regulations, or ITRs) will carry on as usual.
From the ITU website, a full list of the states that and how they voted.