LAN (Local Area Network) covers a small geographical area such as a home, office, or building. It offers high-speed connectivity and is used for connecting nearby devices.
MAN (Metropolitan Area Network) spans a city or large campus. It connects multiple LANs within a metropolitan region and provides moderate to high-speed communication.
WAN (Wide Area Network) covers very large... https://www.uninets.com/blog/lan-man-wan-difference