Another article on how it happened:

"For all the Internet’s vaunted connectivity, the Egyptian government commanded powerful instruments of control: it owns the pipelines that carry information across the country and out into the world.

Internet experts say similar arrangements are more common in authoritarian countries than is generally recognized. In Syria, for example, the Syrian Telecommunications Establishment dominates the infrastructure, and the bulk of the international traffic flows through a single pipeline to Cyprus. Jordan, Qatar, Oman, Saudi Arabia and other Middle Eastern countries have the same sort of dominant, state-controlled carrier."

http://www.theglobeandmail.com/report-on-business/how-egypt-killed-the-internet/article1909478/