In legal practice, this term is used to refer to the International Telecommunications Satellite Organisation (ITSO), the intergovernmental body associated with the former INTELSAT system in global satellite communications. Historically, the INTELSAT intergovernmental organisation owned and operated a worldwide satellite network used by over 100 states. Following privatisation in 2001, those operational assets and services were transferred to a private operator (now Intelsat), while ITSO remains as the treaty organisation supervising compliance with core public service principles (including global connectivity, non-discriminatory access and lifeline services).
The term is not defined in UK or Irish domestic legislation; it is a treaty-based concept arising from the INTELSAT/ITSO agreements, to which the UK and Ireland have been parties. It commonly appears in telecommunications regulation, public international law, satellite capacity and procurement contracts, spectrum and ITU coordination matters, sanctions, and questions of privileges and immunities.
Usage is broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland. References stating that COMSAT is the US
representative reflect the historical position under the pre‑2001 INTELSAT framework; representation and signatory arrangements have since changed and the intergovernmental body does not itself operate satellites.