Verizon managed to gobble up national licenses to a wide swath of the 700MHz Block C spectrum a few years back, and it is this slice of electromagnetism the carrier used to deploy its 4G LTE network. That's not Verizon's only plan of attack, though. It has also been putting together a second spectrum range running on AWS. Well, this space is almost ready, and the Galaxy S4 is going to be the first device to access it.
The new AWS bands are not going to be a separate network, walled off from 700MHz. Rather, this is a way for Verizon to augment its coverage and speeds in areas of high usage.