By the numbers, Twitter is huge, boasting 241 million monthly active users across the globe. But how many of those people are actually tweeting?

A new report from social media tracking site Twopcharts claims that 44 percent of all Twitter accounts have never sent a tweet, reported the Wall Street Journal.

Twitter, however, is hardly a ghost town. That is out of approximately 974 million total accounts — which means that more than 428 million accounts have sent out a tweet.