In the early days of manual exchanges, outlying areas (eventually called dependent exchanges) were connected through progressively larger locations (eventually called group switching centres) into one of the main cities - Birmingham, Edinburgh, Glasgow, Liverpool, London, and Manchester.
Nine Network | Cartoon Network | Seven Network | Showtime (TV network) | Network Ten | television network | CTV Television Network | GMA Network | USA Network | The Sports Network | Food Network | Trinity Broadcasting Network | Computer network | NFL Network | Home Shopping Network | DuMont Television Network | Network Rail | network | Global Television Network | American Forces Network | The Social Network | Dish Network | PlayStation Network | Big Ten Network | Christian Broadcasting Network | Game Show Network | Retro Television Network | Portable Network Graphics | Simple Network Management Protocol | Anime News Network |