FCC will allow Alphabet’s Project Loon to deliver air balloon LTE to Puerto Rico - The Verge

Also see Project Loon cleared to help restore wireless in Puerto Rico (Engadget)

"The Federal Communications Commission yesterday granted Alphabet-owned Project Loon an experimental license to operate in Puerto Rico and the US Virgin Islands for the purpose of helping the islands regain connectivity. The license extends from October 6th until April 4th, 2018, and it was granted to Ben Wojtowicz, a software engineer and member of Alphabet’s X lab who works on Project Loon.

The helium balloons are expected to deliver emergency LTE cellular reception to allow residents and local governments to contact friends and family, coordinate relief and restoration efforts, and reestablish communication with the outside world. It’s unclear to what extent Loon will cover Puerto Rico or parts of the Virgin Islands, or how many balloons the team plans to deploy."

FCC will allow Alphabet’s Project Loon to deliver air balloon LTE to Puerto Rico - The Verge