Speaking at the World Economic Forum (WEF) in Davos Evan Williams, co-founder and CEO of Twitter said the company was working on "hacks" to stop any blocking by foreign governments.
He said that the system was partially blocked in China and other places and in Iran as well.
Williams said that it was pointless trying to talk to such governments “whose very being is against what we are about”.
Twitter had an advantage in evading government censors because its streams were distributed through a number of outlets.
Last year Twitter was used heavily in reporting first-hand post-election oppression in Iran, and subsequently used to organise protests.