The number of Internet users worldwide has mushroomed to reach the two billion mark, the head of the UN's telecommunications agency, Hamadoun Toure, said on Wednesday.
The number of mobile phone subscriptions also reached the symbolic threshold of five billion, the secretary general of the UN's International Telecommunications Union (ITU) told journalists.
"At the beginning of the year 2000 there were only 500 million mobile subscriptions globally and 250 million Internet users," he said.
"By the beginning of this year 2011 those numbers have mushroomed to over five billion mobile users and two billion subscribers to the Internet," Toure added.
Nigerian Users is about 30 million.