There are currently 254 devices connected to a hospital's network. An additional 30,000 to 65,000 devices will be added to the hospital's network during the next five years, but no more than 65,000 devices. What is the most appropriate IP address class for the hospital to accommodate its network growth?

The most appropriate IP address class for the hospital to accommodate its network growth is Class B.

Class B allows for a larger number of devices compared to Class C, which may not be sufficient considering the hospital is already connected to 254 devices and will be adding 30,000 to 65,000 more devices in the next five years.