On a global basis, subscriptions to HSPA mobile broadband are growing rapidly. There were 900 million global subscriptions for HSPA at of the end of December 2011, rising to 1 billion by 2Q 2012. This number is expected to reach 2.8 billion by the end of 2015. There were 476 commercial HSPA networks in 181 countries worldwide reported in September 2012.4