I'm just going by memory of press releases. But Mich, Brown, Yale & Penn alone get you close to a billion.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
I'm just going by memory of press releases. But Mich, Brown, Yale & Penn alone get you close to a billion.