AT&T want’s your iPhone 4S to have a 4G indicator October 7, 2011 ~ Matthew Jagiela ~ Leave a comment AT&T wants your iPhone 4S to have a 4G indicator as the iPhone 4S runs on AT&T’s HSPA+ network which they say is 4G. This is of course only for AT&T. So what network did you get your iPhone 4S on? Advertisement