Twitter began as an SMS service. Today, we continue to build out SMS capability because we recognize the importance and value of making our service available to every person on the planet. No matter what device people use — from the most advanced smartphone to the simplest feature phone — people around the world should be able to send and read Tweets.
Of course, there may be times when people cannot access SMS. We’ve been working on some solutions when that occurs:
We’ve partnered with the two largest satellite operators, Iridium and Thuraya, to give their subscribers access to Twitter SMS. Now, even if phone lines and the Internet are inaccessible — for example, in a war zone or after a natural disaster — people will be able to share news and stay informed via Twitter.
We work with as many carriers as we can to support SMS around the world. If your carrier does not currently support Twitter SMS, you can still Tweet. Just use one of our long codes.
Here’s a full list
of mobile carriers and satellite providers that support Twitter SMS, and as always, you can follow @twittermobile to find out when even more carriers offer it.