Company: IRDM
Filing Date: 2025-02-13
Form Type: 10-K
Source: 0001628280-25-005302
Chunk: 33

Company: Iridium Communications Inc.
Filing Date: 2025-02-13
Form: 10-K
Item: Item 1
Chunk 33
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 below sets forth the percentage of our revenue from the United States, Canada and all other countries for the last three years. No single country outside the United States and Canada represented more than 10% of our revenue for any of the periods indicated.

Year Ended December 31,202420232022United States53 %55 %52 %Canada11 %8 %9 %Other Countries37 %37 %39 %

For more information about our revenue from sales to foreign and domestic customers, see Note 16 to our consolidated financial statements included in this annual report.

Traffic Originating Outside the United States

Most of our voice and data traffic originates outside the United States. The table below sets forth the percentage of our commercial voice and data traffic originating outside the United States for the last three years.

Year Ended December 31,202420232022Commercial voice traffic (minutes)91 %91 %90 %Commercial data traffic (kilobytes)94 %96 %95 %

Our Network

Our satellite network has an architecture of 66 operational LEO satellites in six orbital planes of eleven vehicles, each in nearly circular polar orbits, in addition to in-orbit spares and related ground infrastructure. Our operational satellites orbit at an altitude of approximately 483 miles (778 kilometers) above the earth and travel at approximately 16,689 miles per hour, resulting in a complete orbit of the earth approximately every 100 minutes. The design of our constellation ensures that generally at least one satellite is visible to subscribers from any point on the earth’s surface at any given time. While our constellation offers true global coverage, most of our devices and antennas must have a direct line of sight to a satellite to transmit or receive a signal, and services on those devices are not available in locations where a satellite signal cannot be transmitted or received, which for some devices includes inside a building. 

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Our constellation uses radio frequency crosslinks between our satellites, which eliminates the need for local ground infrastructure. These crosslinks enable each satellite to communicate with up to four other satellites in space, two in the same orbital plane and two in adjacent planes. Our traffic is routed on a preplanned route between satellites to a predetermined satellite that is in contact with one of the Iridium teleport network, or TPN, locations. The TPN sites then transmit and receive the traffic to and from the gateways, which in turn provide the interface to terrestrial-based networks such as the PSTN, a public land mobile network