By the end of 2011, Facebook had 432 million monthly active mobile users, according to an updated s-1 filing with the Securities and Exchange Commission. While hard to believe, the social giant also revealed that just over 13% of these actives users accessed the social network exclusively through their mobile devices. This isn’t the first we’re learning of Facebook’s massive mobile footprint.
“When the company filed for an initial public offering in February, it said it had more than 425 million mobile MAU in December 2011,” Inside Facebook reports. With the updated stats, however, Facebook is reporting year-over-year mobile media access unit growth of 76%, from 245 million at the end of 2010. In all, the company estimates that 58 million users accessed the social network solely through mobile apps or the mobile site during December alone. Facebook did not note what percent of these users are on feature phones versus smartphones, nor did it provide any demographic information about these users, as Inside Facebook notes.
Overall, Facebook says it now has 845 million total media access units. Largely driving growth, according to Facebook, has been product enhancements across various mobile platforms.