Infobunker AT&T Boone Tower Site, Iowa

This former AT&T equipment bunker, in the farmland north of Des Moines, Iowa, is being marketed as an underground data center called the Infobunker. On the surface is a microwave relay tower, built as part of AT&T’s nationwide communications system in the 1960s. The bunker here, with around 20,000 square feet, was larger than a typical relay station, as it housed equipment for the AUTOVON system, which was a military communications network that existed independently of AT&T’s civilian network. Additional security included thicker walls, more space, bigger blast doors, and spring loading for equipment rooms. There are around 60 communications bunkers across the nation that were part of this system, some of which have been sold to the public.