Next week, the iPhone will launch on three additional U.S. regional carriers. This move follows last month’s roll out to five regional carriers plus last year’s addition of C Spire and Puerto Rico-based Claro Puerto (Apple’s first deasl with regional carriers).

Apple’s regional expansion prompted Morgan Stanley analyst Katy Huberty to issue a note to investors saying that the new partnerships will help ensure sustained iPhone growth. She also noted that she doesn’t expect to see carriers dropping subsidized pricing for the iPhone – a concern that has also made investors hesitant when it comes to Apple.