Until Iridium can move a replacement satellite into the position held by the one destroyed in the crash, the remaining 65 satellites and four ground stations in Iridium's network will route around the problem, a spokeswoman says.

The provider has eight spare satellites flying in lower orbit than their production constellation, and the spares can maneuver up to replace ones that become inoperable, she says. In addition the company has two groundstations for sending and receiving traffic between the satellite and the Earth, plus two backups. "It's a very flexible network," she says.

Each satellite has four crosslinks with other satellites in the production constellation, which enables routing traffic around failures and congestion.

Iridium uses Boeing contractors to monitor and update the satellites, the spokeswoman says.

Iridium satellites orbit the Earth from pole to pole with some flying in one direction some in the other. They communicate with satellites immediately in front and behind them and to either side that are flying in the same direction.