Apple iPhone 4S. (Image: Brett Jordan, via Flickr / CC)

The iPhone is extending its reach from its major carriers in the United States to attract more customers.
Five regional carriers, namely Alaska Communications, Appalachian Wireless, Cellcom, GCI, and nTelos, have all started to offer the iPhone to local subscribers yesterday.
Customers of the five carriers can actually enjoy one particular advantage among others over those who are subscribed to Verizon, AT&T, or Sprint – they can …